OPERATOR’S MANUAL
ROTARY TOOL KIT
HT230
Your rotary tool kit has been engineered and manufactured to our high standard for dependability, ease of operation, and
operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using
this product.
Thank you for your purchase.
SAVE THIS MANUAL FOR FUTURE REFERENCE
GENERAL SAFETY RULES
Avoid accidental starting. Be sure switch is off
WARNING:
before plugging in. Carrying tools with your finger on
the switch or plugging in tools that have the switch on
invites accidents.
Read and understand all instructions. Failure to follow
all instructions listed below, may result in electric shock,
fire and/or serious personal injury.
Remove adjusting keys or wrenches before turning
the tool on. A wrench or a key that is left attached to a
rotating part of the tool may result in personal injury.
SAVE THESE INSTRUCTIONS
WORK AREA
Do not overreach. Keep proper footing and balance
at all times. Proper footing and balance enables better
control of the tool in unexpected situations.
Use safety equipment. Always wear eye protection.
Dust mask, nonskid safety shoes, hard hat, or hearing
protection must be used for appropriate conditions.
Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents.
Do not operate power tools in explosive atmospheres,
such as in the presence of flammable liquids, gases, Do not wear loose clothing or jewelry. Contain long
or dust. Power tools create sparks which may ignite the
dust or fumes.
hair. Loose clothes, jewelry, or long hair can be drawn
into air vents.
Do not use on a ladder or unstable support. Stable
footing on a solid surface enables better control of the
tool in unexpected situations.
Keep bystanders, children, and visitors away while
operating a power tool. Distractions can cause you to
lose control.
TOOL USE AND CARE
ELECTRICAL SAFETY
Use clamps or other practical way to secure and
support the workpiece to a stable platform. Holding
the work by hand or against your body is unstable and
may lead to loss of control.
Do not force tool. Use the correct tool for your
application. The correct tool will do the job better and
safer at the rate for which it is designed.
Double insulated tools are equipped with a polarized
plug (one blade is wider than the other). This plug will
fit in a polarized outlet only one way. If the plug does
not fit fully in the outlet, reverse the plug. If it still
does not fit, contact a qualified electrician to install a
polarized outlet. Do not change the plug in any way.
Double insulation
eliminates the need for the three-
wire grounded power cord and grounded power supply
system.
Do not use tool if switch does not turn it on or off. Any
tool that cannot be controlled with the switch is dangerous
and must be repaired.
Disconnect the plug from power source before making
any adjustments, changing accessories, or storing the
tool. Such preventive safety measures reduce the risk of
starting the tool accidentally.
Store idle tools out of the reach of children and other
untrained persons. Tools are dangerous in the hands of
untrained users.
Maintain tools with care. Keep cutting tools sharp
and clean. Properly maintained tools with sharp cutting
edges are less likely to bind and are easier to control.
Avoid body contact with grounded surfaces such as
pipes, radiators, ranges, and refrigerators. There is an
increased risk of electric shock if your body is grounded.
Don’t expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of electric
shock.
Do not abuse the cord. Never use the cord to carry the
tools or pull the plug from an outlet. Keep cord away
from heat, oil, sharp edges, or moving parts. Replace
damaged cords immediately. Damaged cords increase
the risk of electric shock.
Check for misalignment or binding of moving parts,
breakage of parts, and any other condition that may
affect the tool’s operation. If damaged, have the tool
serviced before using. Many accidents are caused by
poorly maintained tools.
When operating a power tool outside, use an outdoor
extension cord marked “W-A” or “W”. These cords
are rated for outdoor use and reduce the risk of electric
shock.
PERSONAL SAFETY
Use only accessories that are recommended by the
manufacturer for your model. Accessories that may be
suitable for one tool, may become hazardous when used
on another tool.
Keep the tool and its handle dry, clean and free from
oil and grease. Always use a clean cloth when cleaning.
Never use brake fluids, gasoline, petroleum-based
products, or any strong solvents to clean your tool.
Following this rule will reduce the risk of loss of control
and deterioration of the enclosure plastic.
Stay alert, watch what you are doing and use common
sense when operating a power tool. Do not use tool
while tired or under the influence of drugs, alcohol,
or medication. A moment of inattention while operating
power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry.
Contain long hair. Keep your hair, clothing, and gloves
away from moving parts. Loose clothes, jewelry, or long
hair can be caught in moving parts.
3
GENERAL SAFETY RULES
When servicing a tool, use only identical replacement
SERVICE
parts. Follow instructions in the Maintenance section
of this manual. Use of unauthorized parts or failure to
follow Maintenance Instructions may create a risk of
shock or injury.
Tool service must be performed only by qualified
repair personnel. Service or maintenance performed by
unqualified personnel may result in a risk of injury.
SPECIFIC SAFETY RULES
Hold tool by insulated gripping surfaces when
performing an operation where the cutting tool may
contact hidden wiring or its own cord. Contact with a
“live” wire will make exposed metal parts of the cutting
tool “live” and shock the operator.
heavy enough to carry the current your product will
draw. A wire gauge size (A.W.G.) of at least 16 is
recommended for an extension cord 50 feet or less in
length. Acordexceeding100feetisnotrecommended.
If in doubt, use the next heavier gauge. The smaller
the gauge number, the heavier the cord. An undersized
cord will cause a drop in line voltage resulting in loss of
power and overheating.
Accessories must be rated for at least the speed
recommended on the tool warning label. Wheels and
other accessories running over rated speed can fly apart
and cause injury.
Inspect for and remove all nails from lumber before
using this tool. Following this rule will reduce the risk of
serious personal injury.
Know your power tool. Read operator’s manual
carefully. Learn its applications and limitations, as well
as the specific potential hazards related to this tool. Do not operate the flexible shaft with a sharp bend.
Following this rule will reduce the risk of electric shock,
fire, or serious injury.
Over bending the shaft can generate excessive heat on
the jacket or hand piece. The recommended minimum
bend radius is 6 in.
Always wear safety glasses. Everyday eyeglasses
have only impact-resistant lenses; they are NOT safety After changing bits or making any adjustments, make
glasses. Following this rule will reduce the risk of serious
personal injury.
sure the collet nut and any other adjustment devices
are securely tightened. A loose adjustment device can
unexpectedly shift, causing loss of control. Loose rotating
components will be violently thrown.
Protect your lungs. Wear a face or dust mask if the
operation is dusty. Following this rule will reduce the risk
of serious personal injury.
Do not reach in the area of the spinning bit. The
proximity of the spinning bit to your hand may not always
be obvious.
Protect your hearing. Wear hearing protection during
extended periods of operation. Following this rule will
reduce the risk of serious personal injury.
Do not grind or sand heat flammable materials. Sparks
from the wheel could ignite these materials.
Inspect tool cords periodically and, if damaged, have
repaired at your nearest Authorized Service Center. This product is not intended for use as a dental drill or
Constantly stay aware of cord location. Following this
in human or veterinary medical applications. Serious
rule will reduce the risk of electric shock or fire.
injury may result.
Check damaged parts. Before further use of the When using steel screws, cut-off wheels, high speed
tool, a guard or other part that is damaged should
be carefully checked to determine that it will operate
properly and perform its intended function. Check for
alignment of moving parts, binding of moving parts,
breakage of parts, mounting, and any other conditions
that may affect its operation. A guard or other part that
is damaged should be properly repaired or replaced
by an authorized service center. Following this rule will
reduce the risk of shock, fire, or serious injury.
cutters, or tungsten carbide cutters, always have
the work securely clamped. Never attempt to hold
the work with one hand while using any of these
accessories.
Ifthepowersupplycordisdamaged,itmustbereplaced
only by the manufacturer or by an authorized service
center to avoid risk.
Save these instructions. Refer to them frequently and
use them to instruct others who may use this tool. If you
loan someone this tool, loan them these instructions
also.
Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one
4
SYMBOLS
Some of the following symbols may be used on this product . Please study them and learn their meaning. Proper
interpretation of these symbols will allow you to operate the product better and safer.
SYMBOL
NAME
DESIGNATION/EXPLANATION
V
Volts
Voltage
Current
A
Hz
W
Amperes
Hertz
Frequency (cycles per second)
Power
Watt
min
Minutes
Time
Alternating Current
Direct Current
Type of current
Type or a characteristic of current
Rotational speed, at no load
Double-insulated construction
Revolutions, strokes, surface speed, orbits etc., per minute
n
o
No Load Speed
Class II Construction
Per Minute
.../min
Wet Conditions Alert
Do not expose to rain or use in damp locations.
To reduce the risk of injury, user must read and understand
operator’s manual before using this product.
Read The Operator’s Manual
Always wear safety goggles or safety glasses with side shields and,
as necessary, a full face shield when operating this product.
Eye Protection
Safety Alert
Precautions that involve your safety.
Failure to keep your hands away from the blade will result in serious
personal injury.
No Hands Symbol
Failure to keep your hands away from the blade will result in serious
personal injury.
No Hands Symbol
No Hands Symbol
No Hands Symbol
Failure to keep your hands away from the blade will result in serious
personal injury.
Failure to keep your hands away from the blade will result in serious
personal injury.
To reduce the risk of injury or damage, avoid contact with any hot
surface.
Hot Surface
5
SYMBOLS
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL
SIGNAL
MEANING
Indicates an imminently hazardous situation, which, if not avoided, will result
in death or serious injury.
DANGER:
Indicates a potentially hazardous situation, which, if not avoided, could result
in death or serious injury.
WARNING:
CAUTION:
CAUTION:
Indicates a potentially hazardous situation, which, if not avoided, may result in
minor or moderate injury.
(Without Safety Alert Symbol) Indicates a situation that may result in property
damage.
SERVICE
WARNING:
Servicing requires extreme care and knowledge and should
be performed only by a qualified service technician. For
service we suggest you return the product to the nearest
AUTHORIZED SERVICE CENTER for repair. When
servicing, use only identical replacement parts.
To avoid serious personal injury, do not attempt
to use this product until you read thoroughly and
understand completely the operator’s manual. If you
do not understand the warnings and instructions in the
operator’s manual, do not use this product. Call Ryobi
customer service for assistance.
WARNING:
The operation of any power tool can result in foreign objects being thrown into your eyes, which can
result in severe eye damage. Before beginning power tool operation, always wear safety goggles or
safety glasses with side shields and, when needed, a full face shield. We recommend Wide Vision
Safety Mask for use over eyeglasses or standard safety glasses with side shields. Always use eye
protection which is marked to comply with ANSI Z87.1.
SAVE THESE INSTRUCTIONS
6
ELECTRICAL
DOUBLE INSULATION
EXTENSION CORDS
Double insulation is a concept in safety in electric power
tools, which eliminates the need for the usual three-
wire grounded power cord. All exposed metal parts are
isolated from the internal metal motor components with
protecting insulation. Double insulated tools do not need
to be grounded.
When using a power tool at a considerable distance from
a power source, be sure to use an extension cord that has
the capacity to handle the current the product will draw. An
undersized cord will cause a drop in line voltage, resulting in
overheating and loss of power. Use the chart to determine
the minimum wire size required in an extension cord. Only
round jacketed cords listed by Underwriter’s Laboratories
(UL) should be used.
WARNING:
When working outdoors with a product , use an extension
cord that is designed for outside use. This type of cord is
designated with “WA” on the cord’s jacket.
The double insulated system is intended to protect
the user from shock resulting from a break in the tool’s
internal insulation. Observe all normal safety precautions
to avoid electrical shock.
Before using any extension cord, inspect it for loose or
exposed wires and cut or worn insulation.
NOTE:Servicingofaproductwithdoubleinsulationrequires
extreme care and knowledge of the system and should
be performed only by a qualified service technician. For
service, we suggest you return the product to your nearest
authorized service center for repair. Always use original
factory replacement parts when servicing.
**Ampere rating (on product data plate)
0-2.0
2.1-3.4 3.5-5.0 5.1-7.0 7.1-12.0 12.1-16.0
Cord Length
Wire Size (A.W.G.)
25'
50'
16
16
16
16
16
16
16
16
14
16
14
12
14
14
10
14
12
—
ELECTRICAL CONNECTION
100'
This product has a precision-built electric motor. It should
be connected to a power supply that is 120 volts, 60 Hz,
AC only (normal household current). Do not operate this
product on direct current (DC). A substantial voltage drop
will cause a loss of power and the motor will overheat. If
the product does not operate when plugged into an outlet,
double-check the power supply.
**Used on 12 gauge - 20 amp circuit.
NOTE: AWG = American Wire Gauge
WARNING:
Keep the extension cord clear of the working area.
Position the cord so that it will not get caught on
lumber, tools, or other obstructions while you are working
with a power tool. Failure to do so can result in serious
personal injury.
WARNING:
Check extension cords before each use. If damaged
replace immediately. Never use the product with a
damaged cord since touching the damaged area could
cause electrical shock resulting in serious injury.
7
FEATURES
PRODUCT SPECIFICATIONS
Collet ........................................................................1/8 in.
No Load Speed ......................10,000-35,000 r/min. (RPM)
Input ............................... 120 V, 60 Hz, AC only, 1.2 Amps
Switch.........................................................Variable Speed
ON ( I )/OFF ( O )
SWITCH
CLEANING
BRUSH
TELESCOPING
TOOL HANGER
DIGITAL
DISPLAY
SPEED CONTROL
BUTTONS
SPINDLE
LOCK
CLAMP-ON
BASE
PLUNGE CUTTING
ACCESSORY
FLEX SHAFT
Fig. 1
8
FEATURES
KNOW YOUR ROTARY TOOL KIT
FLEX SHAFT
A flexible shaft can be connected to the rotary tool for
working in hard to reach areas and for better control during
delicate work.
See Figure 1.
The safe use of this product requires an understanding of the
information on the product and in this operator’s manual as
well as a knowledge of the project you are attempting. Before
use of this product, familiarize yourself with all operating
features and safety rules.
PLUNGE CUTTING ACCESSORY
The plunge cutting accessory attaches to the end of the
rotarytool. Depthofcutcanbeadjustedin1/8in. increments
up to 1 in.
CLEANING BRUSH
Usethecleaningbrushtoquicklycleantheworkpiece,rotary
tool, and accessories.
SPEED CONTROL BUTTONS
The speed control buttons allow you to easily select tool
speed.
DIGITAL DISPLAY
The speed of the tool is conveniently shown on the digital
display.
TELESCOPING TOOL HANGER
The telescoping tool hanger provides a convenient place to
hang the rotary tool while the flex shaft is in use.
ASSEMBLY
UNPACKING
This product has been shipped completely assembled.
WARNING:
If any parts are damaged or missing do not operate
this product until the parts are replaced. Failure to heed
this warning could result in serious personal injury.
Carefully remove the product and any accessories from
the box. Make sure that all items listed in the packing list
are included.
Inspect the product carefully to make sure no breakage
or damage occurred during shipping.
WARNING:
Do not discard the packing material until you have carefully
Do not attempt to modify this product or create
accessories not recommended for use with this product.
Any such alteration or modification is misuse and could
result in a hazardous condition leading to possible serious
personal injury.
inspected and satisfactorily operated the product.
If any parts are damaged or missing, please call
1-800-525-2579 for assistance.
PACKING LIST
Rotary Tool
Accessories (See Accessory Chart)
Case
WARNING:
Do not connect to power supply until assembly is
complete. Failure to comply could result in accidental
starting and possible serious personal injury.
Locking Key
Wrench
Cleaning Brush
Plunge Cutting Accessory
Collet (4)
Telescoping Tool Hanger
Flex Shaft
Tool Hanger Clamp-on Base
Operator’s Manual
9
OPERATION
WARNING:
Do not allow familiarity with products to make you
careless. Remember that a careless fraction of a second is
sufficient to inflict serious injury.
WARNING:
Always wear safety goggles or safety glasses with side
shields when operating power tools. Failure to do so
could result in objects being thrown into your eyes
resulting in possible serious injury.
ON ( I )/OFF ( O )
SWITCH
WARNING:
Do not use any attachments or accessories not
recommended by the manufacturer of this product. The
use of attachments or accessories not recommended
can result in serious personal injury.
Fig. 2
WRENCH
SPINDLE LOCK
APPLICATIONS
You may use this product for the purposes listed below:
Cutting
Sanding
Polishing and buffing
Engraving
Drilling
COLLET
NUT
COLLET
TURNING THE ROTARY TOOL ON/OFF
See Figure 2.
To turn the tool ON: push the ON ( I )/OFF ( O ) switch to
the ON ( I ) position.
Fig. 3
To turn the tool OFF: push the ON ( I )/OFF ( O ) switch
to the OFF ( O ) position.
With the spindle lock engaged, use the collet wrench to
CAUTION:
loosen the collet nut, if necessary.
Remove the collet nut and old collet using provided collet
To prevent damage to the spindle or spindle lock, always
allow motor to come to a complete stop before engaging
the spindle lock.
wrench, if necessary.
Insert the unslotted end of the collet in the hole in the end
of the tool shaft.
Replace the collet nut on the shaft.
CHANGING COLLETS
See Figure 3.
WARNING:
Two 1/8 in. collets, one 1/16 in. collet, and one 3/32 in. collet
are included with the rotary tool to accommodate different
shank sizes.
Always use the collet which matches the shank size of the
accessory you plan to use. Never force a large diameter
shank into a collet. The accessory should fit smoothly into
the collet, but you should be able to tighten the accessory
firmly and securely with the provided wrench.
To change the collet:
Unplug the rotary tool.
Press and hold the spindle lock, and rotate the shaft by
hand until the spindle lock engages the shaft, preventing
further rotation.
10
OPERATION
ACCESSORY CHART
Quantity
Accessory
Application
Ferrous materials: casting, welds, rivets,
rust
6
Orange 120-Grit Aluminum Oxide Grinding Wheel Bits
Green 120-Grit Silicon Carbide Grinding Wheel Bits
Non-ferrous materials: stone, ceramics,
porcelain, glass
4
3
Nylon brush: removing dirt and dust
Brass and steel brush: removing rust
Nylon brush: removing dirt and dust
Brass and steel brush: removing rust
Attaching sanding drums
3/4 in. Wire Circle Brushes (nylon, brass, stainless
steel)
Wire Cup Brushes ( 3/16 in. nylon, 3/16 in. and 5/8 in.
brass, 5/8 in. stainless steel)
4
1
1
1/4 in. Drum Sander Mandrel
1/2 in. Drum Sander Mandrel
Attaching sanding drums
Ferrous materials: removing small burrs
and scratch marks
4
Green Rubber Polishing Bits
36
1
15/16 in. X 1/64 in. Cut-off Discs
Polishing Compound Vial
Cutting ferrous materials
Polishing
72
15/16 in. X 1/32 in. Cut-off Discs
Cutting ferrous materials
Ferrous materials: casting, welds, rivets,
rust
6
4
1
3/4 in. Pink 220-Grit Aluminum Oxide Grinding Wheels
1/2 in. Felt Polishing Wheels
Buffing to a bright finish with polishing
compound
Buffing to a bright finish with polishing
compound
7/8 in. X 5/32 in. Rubber Emery Wheel
17
17
1/4 in. X 1/2 in. Sanding Drums (60-Grit and 120-Grit)
1/2 in. X 1/2 in. Sanding Drums (60-Grit and 120-Grit)
Sanding
Sanding
3/4 in. Green 180-Grit Aluminum Oxide Grinding
Wheels
Ferrous materials: removing small burrs
and scratch marks
6
Bringing shape back to parabolic shaped
grinding attachments
1
1
1
Silicon Carbide Dressing Stone
Cloth Polishing Wheels
Polishing and buffing
Cutting marble, concrete, brick, porcelain,
ceramic, epoxy, and hard woods
Diamond Cut-off Wheel
1
1
5
1
1 in. Felt Polishing Wheel
Felt Polishing Drum
Polishing and buffing
Polishing and buffing
1-1/4 in. Fiberglass Cut-off Wheels
1/8 in. Screw Mandrel
Cutting ferrous materials
Attaching felt attachments
Mandrels (1/8 in. shank X 1/16 in. and 1/8 in. shank X
3/32 in.)
Attaching cut-off discs, cut-off wheels,
grinding wheels, and emery wheel
3
1
1-1/4 in. X 3/8 in. 80-Grit Sanding Flap Wheel
Removing rust and mold
Drilling
14
High Speed Steel Drill Bits (1/16 in., 3/32 in., 1/8 in.)
Cutting, engraving, carving, and fine
detailing work
5
1
Diamond Wheel Points
Wood, jade, ceramic, glass, hardened
steel, and semi-precious stones
1/8 in. Drywall Cutting Bit
11
Cutting drywall
OPERATION
WARNING:
SPINDLE LOCK
If you are changing an accessory immediately after
use, be careful not to touch the collet, collet nut, or the
accessory with your hands or fingers. You will get burned
because of the heat buildup from cutting. Always use the
wrench provided.
COLLET
CAUTION:
To prevent damage to the spindle or spindle lock, always
allow motor to come to a complete stop before engaging
the spindle lock.
COLLET NUT
Fig. 4
INSTALLING ACCESSORIES
See Figures 4 - 5.
Unplug the rotary tool.
Press and hold the spindle lock, and rotate the shaft by
hand until the spindle lock engages the shaft, preventing
further rotation.
GRINDING WHEEL
BITS
With the spindle lock engaged, use the collet wrench to
loosen the collet nut, if necessary.
Insert the shank of the accessory into the collet until the
shank bottoms out, then pull it out 1/16 in. to allow for
expansion when the accessory gets hot.
With the spindle lock engaged, tighten the collet nut with
the provided wrench until the accessory shank is gripped
by the collet. Avoid excess tightening of the collet nut.
REMOVING ACCESSORIES
See Figures 4 - 5.
Unplug the rotary tool.
With the spindle lock engaged, loosen the collet nut with
RUBBER
POLISHING BITS
the provided wrench.
Remove the accessory.
SANDING FLAP
WHEEL
WIRE BRUSHES
Fig. 5
12
OPERATION
CAUTION:
MANDREL SCREW
CUT-OFF DISC
WASHER
To prevent damage to the spindle or spindle lock, always
allow motor to come to a complete stop before engaging
the spindle lock.
MANDREL
COLLAR
USING THE MANDRELS
See Figures 6 - 8.
Three types of mandrels have been included for use with
this kit. The standard mandrel is used with the cut-off discs,
grindingwheels,emerywheel,andcut-offwheels.Thescrew
mandrelisusedwiththepolishingwheelsandpolishingdrum.
The drum mandrel is used with the sanding drums.
To install:
Unplug the rotary tool.
Install the mandrel.
COLLET
If using the standard mandrel:
Press and hold the spindle lock.
Fig. 6
Insert the slot end of the provided wrench into the slot
TIGHTEN
on top of the mandrel and unscrew.
SPINDLE LOCK
Remove mandrel screw and washer.
Place desired accessory over mandrel shaft and align
accessory hole with mandrel hole.
Insert mandrel screw with washer through the accessory
and mandrel shaft holes.
NOTE: The mandrel washer should be placed between
the mandrel screw and the accessory.
Tighten using provided wrench.
If using the screw mandrel:
Align desired accessory hole with mandrel screw head.
Screw accessory onto mandrel by twisting clockwise until
secure.
If using the drum mandrel:
Align appropriate sized sanding drum over mandrel and
push down to completely cover drum end of mandrel.
Fig. 7
NOTE: If necessary, tighten the screw on the drum
mandrel head to expand the drum and securely hold the
sanding drum in place.
13
OPERATION
BALANCING ACCESSORIES
For precision work, it is important that all accessories be
properly balanced. To balance an accessory, slightly loosen
the collet nut and give the accessory or collet a 1/4 in. turn.
Youshouldbeabletotellbythesoundandfeeliftheaccessory
is running in balance. Continue adjusting in this fashion until
the best balance is achieved. Replace accessories if they
become damaged or unbalanced.
FIBERGLASS
CUT-OFF WHEEL
SELECTING THE RIGHT SPEED
See Figure 9.
The rotary tool has a speed range of 10,000 to 35,000 RPM.
To select the right speed for each job, use a practice piece of
material. Vary speed to find the best speed for the accessory
you are using and the job to be done.
DIAMOND
CUT-OFF WHEEL
The digital display shows the speed setting of the tool using
the numbers 10-35. Press the + speed control button to
increase the speed, and press the – speed control button
to decrease the speed. Speed settings are approximately
one thousandth of the RPM. For example, a speed setting
of 10 is approximately 10,000 RPM, and a speed setting of
35 is approximately 35,000 RPM.
RefertotheSpeedDialSettingstabletodeterminetheproper
speed, based on the material being worked and the type of
accessory being used.
SLOWER SPEEDS
Certain materials, some plastics for example, require a
relativelyslowspeedbecausethefrictionofthetoolgenerates
heat and causes the plastic to melt at high speed.
SANDING DRUMS
Fig. 8
Slow speeds (15,000 RPM or less) are usually best for
polishing operations using the polishing accessories. They
may also be best for working on delicate projects, delicate
wood carving and fragile model parts.
WARNING:
Wire brushes must never be operated at speeds higher
than 15,000 RPM. Wire brushes must run at least one
minute before use. During this period, no one should
stand in front of or in line with the rotating brush. Failure
to heed this warning could result in serious personal
injury.
DIGITAL
DISPLAY
Higher speeds are better for carving, cutting, and shaping
wood.
Hardwoods, metals, andglassrequirehighspeedoperation.
Drilling should also be done at high speeds.
SPEED CONTROL
BUTTONS
Fig. 9
14
OPERATION
To determine the optimum operational speed for different
NOTE:
materials and accessories, refer to the Speed Dial Settings
table. Look this table over and become familiar with it.
Plastic and materials that melt at low temperatures should
be cut at low speeds.
The best way to determine the correct speed for work on
any material is to practice for a few minutes on a piece of
scrap, even after referring to the table. You can quickly
learn that a slower or faster speed is more effective just by
observing what happens when you make a pass or two at
different speeds.
Soft wood should be cut at high speed.
Aluminum, tin, and copper, lead, and zinc alloys may be
cut at any speed, depending on the type of cutting being
done. Use paraffin or other suitable lubricant on the cutter
to prevent the cut material from adhering to the cutter
teeth.
When working with a scrap piece of plastic, start at a slow
rate of speed and increase the speed until you observe
whether the plastic is melting at the point of contact; reduce
the speed slightly to get optimum working speed without
melting the workpiece.
WARNING:
Wire brushes must never be operated at speeds higher
than 15,000 RPM. Wire brushes must run at least one
minute before use. During this period, no one should
stand in front of or in line with the rotating brush. Failure
to heed this warning could result in serious personal
injury.
SPEED DIAL SETTINGS
Type of
Accessory
Soft
Wood
Hard
Wood
Laminates
Aluminum,
Shell/
Stone
Steel
10-18
25-30
Ceramic
Glass
—
Plastics
Brass, Etc.
Cut-off
Discs
25-30
25-30
18-30
25-30
10-18
10-30
—
—
—
—
Engraving
Cutter
15-25
—
10-18
10-15
—
Rubber
Polishing
Points
—
—
—
—
10-15
—
—
—
—
—
—
Aluminum
Oxide
Grinding
Stones
10-15
10-18
10-18
Silicon
Carbide
Grinding
Stone
—
—
—
—
—
10-15
10-15
10-15
10-15
12-15
—
10-15
—
Wire
Wheels
10-15
10-15
10-15
15
OPERATION
OPERATING THE ROTARY TOOL
See Figure 10.
Learning to use the rotary tool:
Hold the tool in your hand and get used to its weight,
balance, and the taper of the housing. This taper permits
the tool to be grasped like a pencil.
PENCIL HOLDING
METHOD
Examine the rotary tool accessories carefully. Damaged
accessories can fly apart as they come up to speed and
should not be used. The use of damaged accessories
can result in serious personal injury.
Practice on scrap materials first to see how the tool
operates. Keep in mind that the work is done by the speed
of the tool and by the accessory in the collet. You should
not lean on or push the tool into the work.
It is best to make a series of passes with the tool rather than
attempt to do all the work in one pass. To make a cut, pass
the tool back and forth over the work like you would a small
paint brush. Cut a little material on each pass until you reach
the desired depth. For most work, a gentle touch is best;
you will have greater control, make fewer errors, and get the
most efficient work out of the accessory.
Fig. 10
For the best control in close work, grip the tool like a pencil
between your thumb and forefinger.
A“handgrip”methodofholdingthetoolisusedforoperations
such as grinding a flat surface or using cut-off discs.
To operate the rotary tool:
Secure all work in a vise or clamp to a workbench to
prevent it from moving under the tool.
Hold the tool in front and away from you, keeping the tool
accessory clear of the workpiece.
Turn on the tool and let the motor and accessory build
up to full speed.
Lower the tool gradually until the accessory contacts the
workpiece.
Move the tool continuously at a steady, consistent
pace.
Use just enough pressure to keep the tool from chattering
or bouncing.
NOTE: Heavy pressure will decrease the tool’s speed and
put a strain on the motor. The weight of the tool alone is
adequate for most jobs.
Lift the tool away from the workpiece before turning off
the tool.
16
OPERATION
TELESCOPING TOOL HANGER WITH CLAMP
ON BASE
See Figure 11.
TOOL HANGER
HOOK
ROTARY TOOL
HOOK
The telescoping tool hanger provides a convenient place to
hang the rotary tool while the flex shaft is in use.
To clamp the base to a worktable:
Turn the clamp screw counterclockwise to open the
clamping area.
Place clamp over edge of worktable.
Turn the clamp screw clockwise until the clamp is
secure.
TOOL HANGER
To attach the tool hanger to the base:
FLEX SHAFT
Turn the lower part of the tool hanger clockwise to
unlock.
Pull the tool hanger up to lengthen or push the tool hanger
down to shorten its height.
Turn the lower part of the tool hanger counterclockwise
to lock into place.
Screw the tool hanger into the top of the clamp.
NOTE: When using the flex shaft, hang the rotary tool from
the tool hanger hook using the hook located on the back of
the rotary tool.
CLAMP-ON BASE
CLAMP SCREW
CAUTION:
Fig. 11
To prevent damage to the spindle or spindle lock, always
allow motor to come to a complete stop before engaging
the spindle lock.
COLLET SLEEVE
DRIVE
SHAFT
COLLAR
1/8 in.
COLLET
OPERATING THE FLEX SHAFT
See Figures 12 - 14.
The 1/8 in. collet must be inserted into the rotary tool before
the flex shaft can be installed.
To install the flex shaft:
Unplug the rotary tool.
ROTARY
TOOL HEAD
COLLET
NUT
Loosen collet sleeve by turning counterclockwise and
remove.
CUP END OF
FLEX SHAFT
Press and hold the spindle lock, and rotate the shaft by
hand until the spindle lock engages the shaft, preventing
further rotation.
Fig. 12
Insert drive shaft into collet nut until the collar meets the
With the spindle lock engaged, use the collet wrench to
collet nut.
loosen the collet nut, if necessary.
Tighten the collet nut completely, keeping collar in contact
Remove collet nut and collet.
Insert the 1/8 in. collet.
with collet nut.
Insert cup end of flex shaft onto rotary tool head. Turn
Replace the collet nut and tighten loosely.
clockwise to tighten.
17
OPERATION
To install accessories into the flex shaft:
Unplug the rotary tool.
LOCKING KEY
HOLE
Locate the hole behind the collet nut in the flex shaft
COLLET
NUT
body.
Turn the collet nut until the hole in the flex shaft body
aligns with the hole visible inside the flex shaft.
Insert provided locking key into the aligned holes to lock
collet nut into place.
Insert the shank of the accessory into the collet nut until
the shank bottoms out, then pull it out 1/16 in. to allow
for expansion when the accessory gets hot.
WRENCH
With the key still in place, tighten the collet nut with the
provided wrench until the accessory shank is gripped by
the collet. Avoid excess tightening of the collet nut.
Fig. 13
Remove the key.
To remove accessories from the flex shaft:
Unplug the rotary tool.
GROOVED
GRIPPING SECTION
Locate hole behind the collet nut in the flex shaft body.
Turn collet nut until the hole in the flex shaft body aligns
with the hole visible inside the flex shaft.
Insert provided locking key into the aligned holes to lock
collet nut into place.
With the hex still in place, loosen the collet nut with the
provided wrench.
Remove the accessory.
To operate the rotary tool using the flex shaft:
Secure all work in a vise or clamp to a workbench to
prevent it from moving under the tool.
Grip the flex shaft along the grooved gripping section.
Hold the tool in front and away from you, keeping the tool
accessory clear of the workpiece.
Turn on the tool and let the motor and accessory build
Fig. 14
up to full speed.
Lower the tool gradually until the accessory contacts the
workpiece.
Move the tool continuously at a steady, consistent
pace.
Use just enough pressure to keep the tool from chattering
or bouncing.
NOTE: Heavy pressure will decrease the tool’s speed and
put a strain on the motor. The weight of the tool alone is
adequate for most jobs.
Lift the tool away from the workpiece before turning off
the tool.
18
OPERATION
USING THE PLUNGE CUTTING ACCESSORY
See Figures 15 - 16.
The plunge cutting accessory attaches to the end of the
rotarytool. Depthofcutcanbeadjustedin1/8in. increments
up to 1 in.
COLLET
SLEEVE
To assemble the plunge cutting accessory:
Hold the cup-shaped accessory piece with the cup side
facing down.
Insert the cylinder-shaped accessory piece up through
the cup-shaped piece. The legs of the cylinder-shaped
piece should be facing down.
CYLINDER
PIECE
GROOVE
SCREW
Align the groove in the cylinder-shaped piece with the
screw in the cup-shaped piece.
CUP
Tighten the screw to secure the cylinder-shaped piece in
PIECE
place.
To install the plunge cutting accessory on the rotary
tool:
Fig. 15
Unplug the rotary tool.
Install desired drill bit into rotary tool.
Loosen collet sleeve by turning counterclockwise and
remove.
SCALE
Insert rotary tool into cylinder-shaped piece of the
accessory.
SCREW
Turn accessory clockwise until it is securely screwed onto
the rotary tool.
To use the plunge cutting accessory:
Loosen the plunge cutting accessory screw until the
cup-shaped piece can be easily moved.
Align cup-shaped piece with the desired measurement
depth on the accessory scale.
Tighten screw until the accessory is secured.
Connect rotary tool to power supply.
Hold the tool in front and away from you, keeping the tool
bit clear of the workpiece.
Turn on the tool and let the motor and bit build up to full
speed.
Fig. 16
Lower the tool gradually until the bit contacts the
workpiece.
Move the tool continuously at a steady, consistent
pace.
NOTE: The bit has reached the desired depth when
the plunge cutting accessory makes contact with the
workpiece.
Use just enough pressure to keep the tool from chattering
or bouncing.
NOTE: Heavy pressure will decrease the tool’s speed and
put a strain on the motor. Normally the weight of the tool
alone is adequate for most jobs.
Lift the tool away from the workpiece before turning off
the tool.
19
MAINTENANCE
Electrictoolsusedonfiberglassmaterial,wallboard,spackling
WARNING:
compounds, or plaster are subject to accelerated wear and
possible premature failure because the fiberglass chips
and grindings are highly abrasive to bearings, brushes,
commutators, etc. Consequently, we do not recommended
using this product for extended work on these types
of materials. However, if you do work with any of these
materials, it is extremely important to clean the product
using compressed air.
When servicing, use only identical replacement parts.
Use of any other parts may create a hazard or cause
product damage.
WARNING:
Always wear safety goggles or safety glasses with side
shields during power tool operation or when blowing
dust. If operation is dusty, also wear a dust mask.
LUBRICATION
All of the bearings in this product are lubricated with a
sufficient amount of high grade lubricant for the life of the
unitundernormaloperatingconditions.Therefore,nofurther
lubrication is required.
GENERAL MAINTENANCE
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
clean cloths to remove dirt, dust, oil, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline, petroleum-
based products, penetrating oils, etc., come in contact
with plastic parts. Chemicals can damage, weaken or
destroy plastic which may result in serious personal
injury.
20
NOTES
21
OPERATOR’S MANUAL
ROTARY TOOL KIT
HT230
WARNING:
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains
chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these
chemicals are:
•lead from lead-based paints,
•crystalline silica from bricks and cement and other masonry products, and
•arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment,
such as those dust masks that are specially designed to filter out microscopic particles.
• SERVICE
Now that you have purchased your product, should a need ever exist for repair parts
or service, simply contact your nearest Authorized Service Center. Be sure to provide
all pertinent facts when you call or visit. Please call 1-800-525-2579 for your nearest
complete list of Authorized Service Centers.
• MODEL NO. AND SERIAL NO.
The model number of this product will be found on a plate attached to the motor housing.
Please record the model number and serial number in the space provided below.
• HOW TO ORDER REPAIR PARTS
When ordering repair parts, always give the following information:
HT230
• MODEL NUMBER
• SERIAL NUMBER
Ryobi® is a registered trademark of Ryobi Limited used under license.
ONE WORLD TECHNOLOGIES, INC.
1428 Pearman Dairy Road, Anderson, SC 29625
Phone 1-800-525-2579
987000-010
9-15-06 (REV:01)
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