80% Arms FST-1 User manual

OPERATOR’S MANUAL
HIGH-SPEED PRECISION MILLING ROUTER
FST-1
WARNING: To reduce the risk of injury and property damage, you must read and
understand this operator’s manual before using the router. Always wear eye and hearing
protection when using the router. Always wear eye protection with side shields marked
to comply with ANSI Z87.1.
TABLE OF CONTENTS
Power Tool Safety Warnings .................... 2
Compact Router Safety Warning ............. 3
Symbols ...................................................... 4
Electrical ..................................................... 4
Features ..................................................... 5
Assembly .................................................... 6
Operation .................................................... 7
Maintenance .............................................. 10
Illustrations ................................................ 11
Warranty / Customer Service ................... 12

2
WARNING
Read all safety warnings and all instructions. Failure to follow the warnings
and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your
corded mains-operated power tool.
WORK AREA SAFETY
Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
Do not operate power tools in explosive atmospheres,
such as in the presence of flammable liquids, gases
or dust. Power tools create sparks which may ignite the
dust or fumes.
 Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
Power tool plugs must match the outlet. Never modify
the plug in any way. Do not use any adapter plugs with
earthed (grounded) power tools. Unmodified plugs and
matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces
such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body
is earthed or grounded.
Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of elec-
tric shock.
Do not abuse the cord. Never use the cord for carrying,
pulling or unplugging the power tool. Keep cord away
from heat, oil, sharp edges or moving parts. Damaged
or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an exten-
sion cord suitable for outdoor use. Use of a cord suit-
able for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is un-
avoidable, use a ground fault circuit interrupter (GFCI)
protected supply. Use of a GFCI reduces the risk of
electric shock.
PERSONAL SAFETY
Stay alert, watch what you are doing and use com-
mon sense when operating a power tool. Do not use
a power tool while you are tired or under the influence of
drugs, alcohol or medication. A moment of inattention
while operating power tools may result in serious personal
injury.
Use personal protective equipment. Always wear eye
protection. Use protective dust mask, non-skid safety
shoes, and hearing protection to reduce and avoid
personal injuries.
Prevent unintentional starting. Ensure the switch is
in the off position before connecting to power
source and picking up or carrying the tool. Carrying
power tools with your finger on the switch or
energizing power tools that have the switch on invites
accidents. Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may result
in personal injury.
Do not overreach. Keep proper footing and balance at
all times. This enables better control of the power tool
in unexpected situations.
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, or
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
power tool in unexpected situations.
POWER TOOL USE AND CARE
Do not force the power tool. Use the correct power
tool for your application. The correct power tool will
do the job better and safer at the rate for which it was
designed.
Do not use the power tool if the switch does not turn it
on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
Disconnect the plug from the power source before
making any adjustments, changing accessories, or
storing power tools. Such preventive safety
measures reduce the risk of starting the power tool
accidentally.
Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and
any other condition that may affect the power
tool’s operation. If damaged, have the power tool
repaired before use. Many accidents are caused
by poorly maintained power tools.
Store idle power tools out of the reach of children and
do not allow persons unfamiliar with the power tool
or these instructions to operate the power tool. Power
tools are dangerous in the hands of untrained users.
Keep cutting tools sharp and clean. Properly main-
tained cutting tools with sharp cutting edges are less
likely to bind and are easier to control.
POWER TOOL SAFETY WARNINGS

3
Keep power cord away from rotating parts, because
the cutter may contact its own cord. Cutting a “live”
wire may make exposed metal parts of the power tool
“live” and shock the operator.
Always use a vise to secure and support the
workpiece to a stable platform. Holding the work by
your hand, or against the body, or use of an unstable
device may lead to loss of control and 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.
Following this rule will reduce the risk of electric shock,
fire, or serious injury.
Always wear safety glasses. Everyday eyeglasses do
not have impact-resistant lenses; they are NOT safety
glasses. Following this rule will reduce the risk of serious
personal injury and blindness.
Protect your lungs. Wear a face or dust mask.
Following this rule will reduce the risk of serious personal
injury.
Protect your hearing. Always wear hearing protection
during operation. Following this rule will reduce the risk
of serious personal injury.
Inspect tool cords periodically and, if damaged, have
repaired at your nearest authorized service center.
Constantly stay aware of cord location. Following this
rule will reduce the risk of electric shock or fire.
Check for damaged parts. Do not use if any parts are
damaged. Check for alignment of moving parts, binding of
moving parts, breakage of parts, mounting, and any other
conditions that may affect its operation. Any part that is
damaged must be properly repaired or replaced by an
authorized service center. Following this rule will reduce
the risk of shock, fire, or serious injury.
Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one
heavy enough to carry the current your product will
draw. A wire gauge size (A.W.G.) of at least 14 is
recommended for an extension cord 50 feet or less in
length. A cord exceeding 100 feet is not recommended. 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.
Inspect for and remove all nails from lumber before
using this tool. Following this rule will reduce the risk of
serious personal injury.
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.
POWER TOOL SAFETY WARNINGS
Use the power tool, accessories and tool bits etc.
in accordance with these instructions, taking into
account the working conditions and the work to be
performed. Use of the power tool for operations different
from those intended could result in a hazardous situation.
SERVICE
Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is maintained.
When servicing a power tool, use only identical
replacement parts. Follow instructions in the Main-
tenance section of this manual. Use of unauthorized
parts or failure to follow Maintenance instructions may
create a risk of shock or injury.
COMPACT ROUTER SAFETY WARNINGS
WARNING:
This product and some dust created by power sanding, sawing, grinding, drilling, and other construction
activities may contain chemicals, including lead, known to the State of California to cause cancer, birth
defects, or other reproductive harm. Wash hands after handling. Some examples of these chemicals are:
•Lead from lead-based paints
•Crystalline silica from bricks and cement and other masonry products
•Arsenic and chromium from chemically treated lumber
Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce
your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are
specially designed to filter out microscopic particles.
CALIFORNIA PROPOSITION 65

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
Safety Alert Indicates a potential personal injury hazard.
Read Operator’s Manual To reduce the risk of injury, user must read and understand
operator’s manual before using this product.
Eye Protection Always wear eye protection with side shields marked to comply
with ANSI Z87.1.
Wet Conditions Alert Do not expose to rain or use in damp locations.
The following signal words and meanings are intended to explain the levels of risk associated with this product.
SYMBOL SIGNAL MEANING
DANGER: Indicates an imminently hazardous situation, which, if not avoided, will result
in death or serious injury.
WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result
in death or serious injury.
CAUTION: Indicates a potentially hazardous situation, which, if not avoided, may result in
minor or moderate injury.
NOTICE: (Without Safety Alert Symbol) Indicates important information not related to an
injury hazard, such as a situation that may result in property damage.
ELECTRICAL
EXTENSION CORDS
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 tool 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.
When working outdoors with a tool, use an
extension cord that is designed for outside use. This
type of cord is designated with “WA” or “W” on the
cord’s jacket.
Before using any extension cord, inspect it for loose
or exposed wires and cut or worn insulation.
Cord Length Wire Size (A.W.G.)*
25' 16
50' 14
100' 10
*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.

5
FEATURES
PRODUCT SPECIFICATIONS
Collet ......................................................................... 1/4 in.
No Load Speed ................................... 35,000 - 40,00 RPM
Input ............................................... 120 V, 6.5 Amps, 60 Hz
Switch ......................................................................On / Off
OVERMOLDED GRIP AREA
The base grip area is overmolded for improved grip and
comfort.
REMOVABLE BASE
The removable base allows clear access to the spindle.
ON / OFF SWITCH
The switch is located on front of the motor housing for easy
access.
SPINDLE LOCK
A spindle lock secures the spindle so that only one wrench
is needed to loosen the collet nut or SpeedMill™ cutting
tool.
HIGH-SPEED PERFORMANCE
The fixed-speed router has a no-load speed between
35,000 RPM to 40,000 RPM. This allows for rapid and
smooth finishing of your lower receivers.
UNPACKING
This product requires assembly. Carefully remove the
tool and any accessories from the box. Make sure that all
items listed in the packing list are included.
WARNING
Do not use this product if it is not completely
assembled or if any parts appear to be missing
or damaged. Use of a product that is not
properly and completely assembled could result
in serious personal injury.
Inspect the tool carefully to make sure no breakage or
damage occurred during shipping.
KNOW YOUR COMPACT ROUTER
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.
PRECISION GROUND SPINDLE
The router has a custom precision ground spindle
designed for use with the 80 Percent Arms SpeedMill™
cutting tools which significantly reduces run-out and
chatter compared to ordinary routers.
DEPTH SCALE
A convenient inch and millimeter depth scale is located
on the side of the motor housing.
RACK-AND-PINION DEPTH ADJUSTMENT
The smooth rack-and-pinion depth control adjustment
makes for quick and easy depth of cut adjustments.
MOTOR
A powerful 6.5 amp permanent magnet motor has
sufficient power to handle milling 6061 and 7075
aluminum lower receivers.
BASE RELEASE LEVER
The router has a quick release base release lever to
make depth of cut adjustments quick and easy.
Do not discard the packing material until you have care-
fully inspected and satisfactorily operated the tool.
If any parts are damaged or missing, please call
[phone] for assistance.
PACKING LIST
• Compact Router with Base and Subbase
• Collet Nut Wrench
• Collet
• Collet Nut
• Replacement Carbon Brush Set
• Operator’s Manual
WARNING:
This is a high speed router designed to be
used with 80% Arms SpeedMill™ tools only. Do
not use any cutters with this router that are not
rated for use above 35,000 RPM.
WARNING:
Do not attempt to modify this tool or use
accessories not recommended for use with this
tool as this can result in possible property damage
and serious personal injury.

6
ASSEMBLY
WARNING:
Do not connect to power supply until assembly
is complete. Do not use if any parts are missing
or damaged. Failure to comply could result in
accidental starting and possible serious personal
injury.
REMOVING THE BASE
Unplug the router.
Pull the base quick release lever to the open position.
Get a firm grasp of the base with one hand. Hold the
top of the router with the other.
Pull the motor housing away from the base until they
separate.
To reconnect the motor housing to the base:
Align the motor housing rack gears with the pinion gears
on the base and push the motor housing onto the base.
Close the quick release lever.
WARNING:
If you are changing a cutter immediately after
use, do not touch the SpeedMill™, collet nut,
cutter, or collet with your hands or fingers as
they may be very hot. Always use a wrench to
avoid getting burned.
INSTALLING AND REMOVING SPEEDMILL™
Read your Easy Jig® manual for complete directions.
Unplug the router.
Pull the base quick release lever to the open position.
Remove the base to provide clear access to the collet
nut.
Depress the spindle lock button and rotate spindle
until the spindle locks.
Rotate the wrench counterclockwise to loosen the
collet nut. (See Figure 2)
Remove collet nut and collet from the spindle.
Screw a #3C 80 Percent Arms SpeedMill™ onto the
spindle. Securely tighten the SpeedMill™ by turning
it clockwise with a wrench.
Do not remove the protective end mill tip cover until
ready to start milling.
Push the base quick release lever to the closed
position.
WARNING:
If the SpeedMill™ or collet nut is not tightened
securely, the cutter could come out during
milling, resulting in property damage and
possible serious personal injury. A collet and
collet nut are not used when using a SpeedMill™.
REMOVING THE SUBBASE
See Figure 3
Unplug the router.
Turn the router upside down to unscrew the
subbase screws.
Remove the subbase.
NOTICE:
The Subbase must be removed before using the
router with an Easy-Jig® Gen 2-3 Router Adapter
Plate. Please see Easy-Jig® manual for details.
ADJUSTING TOOL BASE LOCKING LEVER
1
2
3
45
6
To check function of the quick release Locking Lever (4),
unlatch the lever and move the Tool Base (2) up and down
by turning the Adjusting Screw (5). Close the Locking
Lever to secure the Tool Base. Grasp the motor housing
and firmly pull and press on the Tool Base to make sure it
is secure and it does not slip. If the Tool Base is not secure
with the Locker Lever latch closed, adjust the Tension Hex
Nut (6) until the Tool Base is secure and does not slip when
pressure is applied to the Tool Base.
Do not tighten the Tension Hex Nut more than 1/8th of a
turn at a time before rechecking if the Tool Base is secure
and does not slip. Periodically check that the Tool Base is
secure to prevent the Tool Base from slipping during
milling.
1. Bit Protrusion
2. Tool Base
3. Depth Scale
4. Locking Lever
5. Adjusting Screw
6. Tension Hex Nut
CAUTION:
Do not bottom out or tighten the Tension Hex Nut
more than needed to avoid damage to the latch
mechanism. Failure to properly adjust the Locking
Lever Tension Hex Nut can result in property
damage and personal injury.

7
OPERATION
WARNING:
Do not allow familiarity with tools to make you
careless. Remember that a careless fraction of a
second is sufficient to inflict serious injury.
DANGER:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1. Failure to do
so could result in objects being thrown into your
eyes, resulting in blindness and possible serious
injury.
WARNING:
Do not use any attachments or accessories not
recommended by the manufacturer of this tool.
The use of attachments or accessories not
recommended can result in serious personal
injury.
NOTICE:
If the motor is overloaded it can overheat and
damage the router. Do not push the router too
fast or make excessive deep cuts which can
damage the router and your cutting tools.
APPLICATIONS
You may use this tool for the purposes listed below:
Milling 6061 aluminum lower receivers
Milling 7075 aluminum lower receivers
Defending your Second Amendment rights
STARTING/STOPPING THE COMPACT ROUTER.
To turn the router ON, press switch (A) on the front of the
router to the ( I ) ON position.
Return the switch to the ( O ) OFF position when finished.
WARNING:
The bit will continue to spin after the slide switch
is set to the ( O ) OFF position. Wait for the bit to
come to a complete stop to continue operation.
Failure to do so could result in possible serious
injury.
ADJUSTING MOTOR SPEED.
The FST-1 router has a fixed no-load speed of ~35,000
RPM for rapid milling. No speed adjustment is necessary.
OPERATING THE COMPACT ROUTER.
Before starting the router, unplug it and make sure
the SpeedMill™ is securely tightened to the spindle and
that the depth of cut is properly set to the appropriate
hash mark on your Easy-Jig® Gen 2 or 3 jig. Never
start the router while the end mill flutes are in contact
with the workpiece.
After completing a full pass, turn the router off and wait
until the rotating cutter comes to a complete stop before
lifting the base from the work surface. When milling, hold
the router over the jig or work surface firmly using both
hands. Make sure the router is running at full speed
before contacting the workpiece.
WARNING:
Never install a trim cutter larger than 1-1/8" in
this router. The use of larger bits can result in
loss of control and possible serious personal
injury.
WARNING:
Never use a trim cutter in this router which is
rated at less than 35,000 RPM. Doing so
could result in serious personal injury.
WARNING:
Always use the base for laminate trimming.
Use of the router without a base or using the
incorrect base can result in serious personal
injury.
WWARNING:ARNING:
Avoid hand positions that may expose fingers to
cutter through open areas of the router base.
Fingers entering the opening in the the router
base can be seriously cut and/or burned.
WARNING:
This is a very high speed router designed to be
used with 80% Arms SpeedMill™ tools only. Do
not use any cutters with this router that are not
rated for use above 35,000 RPM.
NOTE: The router will torque when the switch is
turned on. Make sure both hands are holding the
router firmly and the cutting tool is not contacting any
material before turning on.

FORCE FEEDING
The router is an extremely high-speed tool (35,000 - 40,000
RPM), and will make clean, smooth cuts if allowed to run
freely without the overload of a forced feed. Three things
that cause force feeding are cutter size, depth of cut, and
workpiece characteristics. The larger the cutter or the
deeper the cut, the more slowly the router should be
moved forward. For harder materials, the operation must
be slowed still more.
Clean, smooth milling can be done only when the cutter is
revolving at a relatively high speed and is taking very small
bites to produce tiny, cleanly-severed chips. If the router is
forced to move forward too fast, the speed of the cutter
becomes slower than normal in relation to its forward
movement. As a result, the cutter must take bigger bites as
it revolves. Bigger bites mean bigger chips and a rougher
finish. Bigger chips also require more power, which could
result in overloading the motor.
Under extreme force-feeding conditions, the relative speed
of the cutter can become so slow—and the bites it has to
take so large—that chips will be partially knocked off rather
than fully cut off. This may result in damage to your cutting
tool and gouging of the lower receiver.
OPERATION
DIRECTION OF FEED AND THRUST
See Figure 4
The router motor and cutter revolve in a clockwise direction.
This gives the tool a slight tendency to twist in your hands in a
counterclockwise direction, especially when the motor starts.
Feed the router into the workpiece from left to right. When
fed from left to right, the rotation of the cutter pulls the router
against the workpiece. If fed in the opposite direction, the
rotation forces of the spinning cutter will tend to throw the
router away from the workpiece, causing kickback. This
could result in loss of control of the router.
Because of the extremely high speed of cutter rotation dur-
ing a proper feeding operation, there is very little kickback
to contend with under normal conditions. However, should
the cutter engage too much material, that would affect the
normal progress of the cutting action, and there could be a
slight kickback. Kickback could be sufficient to spoil the
finish of your lower and damage the cutting tool if you are
not prepared. Such a kickback is always in the direction
opposite the direction of cutter rotation.
To guard against kickback, plan your set-up and direction of
feed so that you will always be thrusting the tool—to hold it
against whatever you are using to guide the cut—in the same
direction that the leading edge of the cutter is moving. The
thrust should be in a direction that keeps the sharp edges of
the cutter continuously biting into the aluminum.
PROPER RATE OF FEED
Professional results depend upon using the proper rate of
feed. The proper rate of feed is dependent upon:
•The hardness of the workpiece
•The depth of cut
•The cutting diameter of the cutter
Choose a rate of feed that does not slow down the router
motor. Choose the rate at which the cutter advances
smoothly and surely to produce uniform chips. Vibration
and chatter and excess noise when milling signals force-
feeding. Force feeding increases the strain on the motor
and results in loss of speed and degraded finish quality.
The smaller the depth of cut, the faster the rate of feed that
can be used. The rate of feed should be reduced when
milling corners where more material will engage the cutting
tool.
There is no fixed rule for rate of feed. Proper rate of feed is
learned through practice and use. Always start out with
shallow cuts and a slow feed rate until you find the proper
balance between speed and finish quality.
8
WARNING: To reduce the risk of injury and property damage, you must read and
understand this operator’s manual before using the router. Always wear eye and hearing
protection when using the router. Always wear eye protection with side shields marked
to comply with ANSI Z87.1.
WARNING:
Milling aluminum creates sharp chips. Never use
compressed air to blow the chips away. Using
compressed air will blow chips around which can
cause injury to eyes, skin, and lungs if inhaled.
Chips should be vacuumed or brushed away.
WARNING:
Always use a dust mask to prevent inhaling harmful
particles which can be released or created when
operating a router.

9
WARNING:
Do not exceed more than 1 hash mark in a single
pass. Excessive depth of cut can result in loss of
control and the possibility of damage to your
cutter, lower, jig, and can cause serious personal
injury.
SETTING DEPTH OF CUT
Unplug the router.
Pull open the quick release Locking Lever "D".
Turn the depth Adjusting Screw "F" to slide the
motor housing and cutting tool up and down to the
desired hash mark depth.
Close the quick release Locking Lever "D".
WARNING:
Make sure the quick release locking lever is
properly adjusted and securely locks the motor
housing to the removable base. Damage to your
cutter, lower receiver, jig and serious personal
injury can result from using a router with a loose
quick release locking lever.
F
D
DEPTH OF CUT
See Figure 5
The cutter depth can be read on the depth scale on the
motor housing. Do not exceed 0.05" or 1.3 mm. Each
mark on the inch scale indicates a 0.05" change in depth
setting. Use the depth gauge on your Easy-Jig® when
setting the depth of cut.
When the desired depth of cut is reached. Push the
quick release lever to the closed position to lock the
cutter in place.
Before use, always check that the quick release locking
lever nut tension is properly set so that the base does
not accidentally slip while milling, causing the depth of
cut to change, and possible damage to the lower and
cutting tool.
Depth of cut affects the rate of feed speed and
the quality of a cut. Using the proper depth of cut can
lessen the possibility of damage to the router motor and
cutter.
A deeper cut requires a slower feed than a shallow
one. Making a cut that is too deep will slow the feed
so that the cutter is scraping, rather than cutting,
and is not recommended.
A too-deep cut can cause chatter and cutters to
be broken off. Attempting a cut that is too deep will
result in a rough cut, and may make it difficult
to guide and control the cutter as desired. Do not
exceed 1 hash mark depth of cut in a single pass. For
best finish quality, do not exceed 1/2 hash mark depth
of cut on our Easy-Jig® line of jigs. This will result in a
higher quality finish.
OPERATION
CAUTION:
Failure to properly adjust the locking lever tension
nut can result in the base slipping when using the
router, resulting in property damage and possible
personal injury. Please follow ADJUSTING TOOL
BASE LOCKING LEVER directions on page 6 prior
to using the router.

10
MAINTENANCE
WARNING:
Before inspecting, cleaning, or performing
any maintenance, make sure the switch is in
the off ( O ) position, wait for all moving parts to
stop, and disconnect from the power supply.
Failure to follow these instructions can result in
death, serious personal injury, or property
damage.
DANGER:
Always wear eye protection with side shields
marked to comply with ANSI Z87.1. Failure to do
so could result in objects being thrown into your
eyes, resulting in possible serious injury.
CAUTION:
When servicing, use only identical replacement
parts. Use of any other parts could create a
hazard or cause product damage.
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
could result in serious personal injury.
Unplug the router.
Remove cutter bit if there is one installed.
With a flat head screwdriver, remove the brush cap (B).
Remove the brush assembly (A).
Check for wear. If worn, always replace in pairs. Do not
replace one side without replacing the other.
Replace the brush assembly.
Make sure the alignment of the brush lines up with the
slot in the router for the brush.
Replace the brush cap and tighten with a screwdriver.
Do not over tighten.
Repeat for other side.
The router is now ready for use.
B
A
ABRASIVE MATERIALS
Electric tools used on fiberglass material, wallboard,
spackling 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 tool 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 tool using compressed air. (Do not use compressed
air on aluminum chips, use a vacuum cleaner instead.)
LUBRICATION
Apply a thin coat of oil to the spindle shaft surfaces
after each use to prevent corrosion to the spindle.
All of the bearings in this tool are lubricated with a
sufficient amount of high grade lubricant for the life of the
unit under normal operating conditions. Therefore, no
further lubrication is required.
POWER SUPPLY CORD REPLACEMENT
If replacement of the power supply cord is necessary, this
must be done by an authorized service center in order to
avoid a safety hazard.
A- Brush Assembly
B - Brush Cap
BRUSH REPLACEMENT

11
Fig. 1
A - On / Off switch
B - Collet Nut Wrench
C - Brush cap
D - Quick release locking lever
E - Hex nut tensioner
F - Depth adjustment screw
G - Motor Housing
H - Accessory clamp screw
I - Removable Base
J - Round subbase
K - Depth Scale
L - Collet nut
M -Collet
N - Carbon Brush Set
O - SpeedMill™ (sold separately)
Fig. 3
B
A - Subbase
B - Screws
C - Removable Base
C
A
B
D
E
68PF
LISTED TOOL
E206252
1
1/2
0
MADE IN CHINA
FABRIQUE EN CHINE FABRICADO EN CHINA
2401 120V 60Hz • 5.5A
n
o
20,000-30,000/min.
Fig. 2
A
C
D
F
E
G
H
I
J
L
M
N
O
K
C - Collet nut
D - Tighten
E - Loosen
A - Wrench
B - Spindle lock
A - Thrust A
D
C
D
GUIDE INSIDE
GUIDE OUTSIDE
A
C
B
B
B - Rotation
C - Guide
D - Feed
A - Depth of cut
B - Width of cut
C - 2nd. pass
D - 1st. pass
B
A
C D
D
C
Fig. 4
Fig. 5
A
BB
C

10-07-20
(REV. 0.97)
OPERATOR’S MANUAL
HIGH-SPEED PRECISION COMPACT ROUTER
80 PERCENT ARMS
12282 Monarch Street
Garden Grove, CA 92841, USA
1-949-354-2767  www.80PercentArms.com
Copyright© 2020 80 Percent Arms
80 PERCENT ARMS LIMITED ONE YEAR WARRANTY - Warranty Policy
Every 80 Percent Arms tool is thoroughly inspected and tested before leaving
the factory. It is warranted to be free of defects from workmanship and
materials for the period of ONE YEAR from the date of original purchase.
Should any trouble develop during this one year period, return the complete
tool, freight prepaid, to 80 Percent Arms. If inspection shows the trouble is
caused by defective workmanship or material, 80 Percent Arms will repair (or
at our option, replace) without charge.
This Warranty does not apply when:
•Repairs are required because of normal wear and tear
•The tool has been abused, misused or improperly maintained
•Modifications have been made to the tool
IN NO EVENT SHALL 80 PERCENT ARMS BE LIABLE FOR ANY INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES FROM THE SALE OR USE OF
THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING AND AFTER THE
TERM OF THIS WARRANTY.
80 PERCENT ARMS DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES,
INCLUDING IMPLIED WARRANTIES OF "MERCHANTABILITY" AND "FITNESS
FOR A SPECIFIC PURPOSE," AFTER THE ONE YEAR TERM OF THIS
WARRANTY.
This Warranty gives you specific legal rights, and you may also have other
rights which vary from state to state. Some states do not allow the exclusion
or limitation of incidental or consequential damages, so the above limitation or
exclusion may not apply to you. Some states do not allow limitation on how
long an implied warranty lasts, so the above limitation may not apply to you.
For replacement parts or service, contact 80 Percent Arms. For the location of
our service center nearest to you, please call [phone] or visit us online
at www.80PercentArms.com.
WARRANTY
12