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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 acci-
dentally occurs, flush with water. If liquid con-
tacts 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 temper-
ature 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 FOR
DRILL/DRIVERS, HAMMER
DRILLS/DRIVERS, DRIVERS
Safety instructions for all operations
• Wear ear protectors when impact drilling. Expo-
sure to noise can cause hearing loss.
•Hold the power tool by insulated gripping
surfaces, when performing an operation where
the cutting accessory or fasteners may contact
hidden wiring. Cutting accessory or fasteners
contacting a "live" wire may make exposed metal
parts of the power tool "live" and could give the
operator an electric shock.
Safety instructions when using long drill bits
•Never operate at higher speed than the maximum
speed rating of the drill bit. At higher speeds, the
bit is likely to bend if allowed to rotate freely without
contacting the workpiece, resulting in personal injury.
• Always start drilling at low speed and with the
bit tip in contact with the workpiece. At higher
speeds, the bit is likely to bend if allowed to rotate
freely without contacting the workpiece, resulting in
personal injury.
• Apply pressure only in direct line with the bit
and do not apply excessive pressure. Bits can
bend causing breakage or loss of control, resulting
in personal injury.
•
To reduce the risk of injury in ap-
WARNING
plications that produce a consid-
erable amount of dust, use an OSHA compliant
dust extraction solution in accordance with the
solution's operating instructions.
• Always use common sense and be cautious when
using tools. It is not possible to anticipate every
situation that could result in a dangerous outcome.
Do not use this tool if you do not understand these
operating instructions or you feel the work is beyond
your capability; contact Milwaukee Tool or a trained
professional for additional information or training.
• Maintain labels and nameplates. These carry
important information. If unreadable or missing,
contact a MILWAUKEE service facility for a free
replacement.
•
Some dust created by power sanding,
WARNING
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 spe-
cially designed to filter out microscopic particles.
SPECIFICATIONS
Cat. No. ...................................... 3403-20, 3404-20
Volts .............................................................. 12 DC
Battery Type .................................................M12™
Charger Type ................................................M12™
No Load RPM .........................................LO 0 - 450
No Load BPM (3404-20 only) ...............LO 0 - 6750
Capacities
Steel ............................................................... 1/2"
Wood
Flat Bit ..................................................... 1-1/4"
Auger Bit ........................................................ 1"
Hole Saw ....................................................... 2"
Screws (dia.)............................................... 1/2"
Masonary (3404-20 only)................................ 3/8"
Recommended Ambient
Operating Temperature .................... 0°F to 125°F
FUNCTIONAL DESCRIPTION
1
Cat. No.
3404-20
9
8
1. Keyless chuck
2. Torque selector collar
3. Speed selector
4. Belt hook
5. Fuel gauge
6. Handle
7. Trigger
8. Control Switch
9 LED
3
HI 0 - 1550
HI 0 - 22,500
2
3
7
6
4
5
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