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• When battery pack is not in use, keep it away 

from other metal objects, like paper clips, coins, 

keys, nails, screws or other small metal objects, 

that can make a connection from one terminal 

to another. 

Shorting the battery terminals together 

may cause burns or a fire. 

• Under abusive conditions, liquid may be ejected 

from the battery; avoid contact. If contact ac-

cidentally  occurs,  flush  with  water.  If  liquid 

contacts eyes, additionally seek medical help. 

Liquid ejected from the battery may cause irritation 

or burns.

• Do not use a battery pack or tool that is dam-

aged or modified. 

Damaged or modified batteries 

may exhibit unpredictable behavior resulting in fire, 

explosion or risk of injury.

• Do not expose a battery pack or tool to fire or 

excessive temperature. 

Exposure to fire or tem

-

perature above 265°F (130°C) may cause explosion.

• Follow all charging instructions and do not charge 

the battery pack or tool outside the temperature 

range  specified  in  the  instructions. 

Charging 

improperly or at temperatures outside the specified 

range may damage the battery and increase the risk 

of fire.

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.

• Never service damaged battery packs. 

Service 

of battery packs should only be performed by the 

manufacturer or authorized service providers.

SPECIFIC SAFETY RULES

• Always assume that the tool contains fasteners. 

Careless handling of the stapler can result in unex-

pected firing of fasteners and personal injury.

• Do not point the tool towards yourself or anyone 

nearby. 

Unexpected triggering will discharge the fas-

tener causing an injury.

• Do not actuate the tool unless the tool is placed 

firmly against the workpiece. 

If the tool is not in con-

tact with the workpiece, the fastener may be deflected 

away from your target.

• Disconnect the tool from the power source when 

the fastener jams in the tool. 

While removing a 

jammed fastener, the tool may be accidentally activated 

if it is plugged in.

• Use caution while removing a jammed fastener. 

The mechanism may be under compression and the 

fastener may be forcefully discharged while attempting 

to free a jammed condition.

• Do not use this tool for fastening electrical cables. 

It is not designed for electric cable installation and 

may damage the insulation of electric cables thereby 

causing electric shock or fire hazards.

• Use only those fasteners specifically recom-

mended. 

Fasteners not identified for use with this tool 

by the tool manufacturer may result in a risk of injury 

to persons or damage to the tool.

•Prior to each use, check workpiece contact and 

trigger for correct operation.

 Do not disassemble or 

clamp parts of the workpiece contact, trigger, or driv-

ing mechanism. This will cause unexpected actuation, 

resulting in serious injury.

•Do not engage in horseplay. 

The discharged fasten-

ers are projectiles capable of causing serious injury.

•Do not remove, tamper with, or otherwise cause 

the tool operating controls to become inoperable.

 

This will cause unexpected actuation, resulting in 

serious injury.

•Do not operate a tool if any portion of the tool oper-

ating controls is inoperable, disconnected, altered, 

or not working properly. 

This will cause unexpected 

actuation, resulting in serious injury.

•Always keep hands and body away from discharge 

area of the tool. 

Never attempt to clear a jammed 

workpiece contact by grasping the discharge area of 

the tool. Fasteners discharged from tool can cause 

serious injury if they contact hands or body. 

•Do not drive fasteners close to the edge of the 

workpiece. 

Fasteners can slip off corners and edges 

or penetrate through thin material, making them pro-

jectiles capable of causing serious injury.

•Use the tool only for the intended purpose. Do not 

abuse the tool. 

Do not use as a hammer, stamp or en-

grave information onto parts, drop or impact the tool or 

otherwise apply excess force to the tool in use. Do not 

mount the tool to stands or modify it for stationary use.

 

Maintain  labels  and  nameplates. 

These carry 

important  information.  If  unreadable  or  missing, 

contact a MILWAUKEE service facility for a free 

replacement.

• 

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 paint

• 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.

SYMBOLOGY

 

  

Volts

 

 

Direct Current

       

     Read Operator's Manual 

 

  

WARNING 

Risk of electric shock. Do

 

 

 

not use near electrical wires

 

 

Always wear eye protection 

 

 

WARNING

 Keep hands away

 

C

US

  UL Listing for Canada and U.S.

Installing/Removing Fasteners

WARNING

Always remove battery pack before 

changing or removing fasteners. 

Always wear safety goggles or glasses with side 

shields.

To

 install 

fasteners:

1. Remove battery pack.

2. 

WARNING! 

Always point the tool away from yourself 

and others when installing fasteners. Failure to do 

so could result in injury.

3. Pinch the magazine latch and pull magazine out 

from tool.

4. Insert the fasteners into the magazine channel. 

The fastener legs should point outwards away from 

the tool body. 

WARNING! 

Use only recommended 

fasteners of the correct type and size. 

Other fasteners 

could result in tool malfunction, leading to injury. 

                 

Magazine  

latch

Magazine

Magazine  

channel

5. Push the magazine back in until it snaps closed.

To 

remove

 fasteners: 

1. Remove battery pack.

2. 

WARNING! 

Always point the tool away from yourself 

and others when installing fasteners. Failure to do 

so could result in injury.

 

3. Pinch the magazine latch and pull magazine out 

from tool.

4. Remove the fasteners.

SPECIFICATIONS

Cat. No. ..................................................... 2447-20 

Volts

..............................................................

12 DC

Battery Type

 .................................................

M12™

Charger Type

................................................

M12™

Recommended Ambient 

   Operating Temperature

 ......................

0°F to 125°F

Staple Type

 ..................3/8" Crown Staples (T-50

®

)

Staple Size

 ....................1/4" (6 mm), 5/16" (8 mm),

3/8" (10 mm), 1/2" (12 mm), 9/16" (14 mm)

FUNCTIONAL DESCRIPTION

1

8

5

6

3

7

2

4

1. Workpiece contact bracket

2. Staple exit indicator

3. Power adjustment

4. Battery gauge

5. Trigger

6. Battery bay

7. Belt clip

8. Magazine

ASSEMBLY

WARNING

Recharge only with the charger 

specified for the battery. For spe-

cific charging instructions, read the operator’s 

manual supplied with your charger and battery.

Removing/Inserting the Battery

To 

remove

 the battery, push in the release buttons 

and pull the battery pack away from the tool.

WARNING

Always remove battery pack before 

changing or removing accessories. 

To 

insert

 the battery, slide the pack into the body 

of the tool. Make sure it latches securely into place.

WARNING

Only use accessories specifically 

recommended for this tool. Others 

may be hazardous.

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