3
specific safeTy rules
• Wear ear protectors.
Exposure to noise can
cause hearing loss.
• Use auxiliary handle(s), if supplied with the
tool.
Loss of control can cause personal injury.
• Hold power tools by insulated gripping surfaces,
when performing an operation where the cutting
tool may contact hidden wiring or its own cord.
Cutting accessory contacting a live wire may make
exposed metal parts of the power tool live and could
give the operator an electric shock.
• Keep hands away from all cutting edges and
moving parts.
• 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 spe-
cially designed to filter out microscopic particles.
funcTional descripTion
specificaTions
Cat. No.
Volts
AC
A
No Load
RPM
No Load
BPM
Shank
Type
Carbide Tipped
Percussion Bit
(concrete)
Percussion
Core Bit
(concrete/brick)
5426-21
5446-21
120
120
14
14
350 / 450
- -
2200 / 2840
2200 / 2840
SDS-Max
SDS-Max
1-3/4"
- -
4-1/2" / 6"
- -
symbology
Volts Alternating Current
Amps
No Load Revolutions per Minute
(RPM)
BPM
Blows per Minute (BPM)
Mexican Approvals Marking
Underwriters Laboratories, Inc.
United States and Canada
2
1
3
5
4
6
7
1. Bit holder
2 Rear side handle
position
3. Mode selector
4. Trigger lock-on
(5446-21 only)
5. Trigger
6. Hammer speed control
7. Power indicator
8. Service indicator
9. Side handle
10.Side handle ball (5446-21 only)
11.Clamp
12.Depth gauge rod
8
9
10
11
12
