OPERATION
With dust extractor:
1. Before each use, check the plastic film for holes.
NOTICE! Discard and replace the dust cap if holes
appear. The unit is no longer OSHA compliant
once the plastic film is punctured. Remove debris
from dust cap before each use.
NOTE: Remove debris by wiping with a rag. If using
water, make sure the dust cap is dry before use.
2. Remove bit from hammer.
3. Compress the dust cap by pushing down on it.
Twist the spring rims together to lock.
1
4. Line up the dust cap to the hammer nose. Feed bit
through the unit and lock bit into place on the hammer.
5. Attach the strap to the rotary hammer by stretch-
ing it through the handle and threading beads
through the strap mounting tabs. Ensure a tight
fit. Cut excess strap at the next bead to prevent
interference. Decompress the dust cap.
6. Remove the vacuum plug and attach the Milwau-
kee Power Tool Adaptor (49-90-1957) or similar
size adaptor to the vacuum port. Connect the
extractor hose to the adaptor.
7. Turn the dust extractor to "automatic-cleaning" mode.
8. Begin drilling. NOTICE! Bit may be hot after use.
NOTE: Use caution when drilling in water or wet
areas. If the bit gets wet, stop operation and let the
bit dry out thoroughly. Concrete must be properly
cured before drilling. Concrete dust will solidify in
the bit if wet.
9. To release unit, pull strap forward and release from
strap mounting tabs. Decompress the dust cap
and twist the spring rims to lock during storage.
10. Use a HEPA-filtered vacuum, or other OSHA
compliant method, to clean any residual dust
from the work area.
Without dust extractor:
1. Before each use, check the plastic film for holes.
NOTICE! Discard and replace the dust cap if holes
appear. The unit is no longer OSHA compliant
once the plastic film is punctured. Remove debris
from dust cap before each use.
NOTE: Remove debris by wiping with a rag. If using
water, make sure the dust cap is dry before use.
2. Remove bit from hammer.
2
3. Compress the dust cap by pushing down on it.
Twist the spring rims together to lock.
1
4. Line up the dust cap to the hammer nose. Feed bit
through the unit and lock bit into place on the hammer.
5. Attach the strap to the rotary hammer by stretch-
ing it through the handle and threading beads
through the strap mounting tabs. Ensure a tight
fit. Cut excess strap at the next bead to prevent
interference. Decompress the dust cap.
6. Connect the vacuum plug to the vacuum port.
7. Begin drilling. NOTICE! Bit may be hot after use.
Empty dust cap into a bucket or similar container
placed near the drilling location that has its open-
ing no higher than the users knee (e.g., a 5 gallon
bucket on the ground) after drilling each hole.
Maximum Number of Holes Per Day*
Hole Depth 3/16" 1/4"
1"
1200
675
1.5"
800
450
2"
600
338
2.5"
480
270
3"
400
225
3.5"
343
193
4"
300
169
* These calculations are offered for reference and are calcu-
lated values based on previously recorded test data. The user
must drill the same number or fewer holes than those listed
above for the given application in order to be considered com-
pliant with the objective data clause of 29 CFR 1926.1153
OSHA regulation on crystalline silica dust. See https://www.
milwaukeetool.com/Silica-Dust-Extraction-Solutions for
more information related to MILWAUKEE objective data.
NOTE: Use caution when drilling in water or wet
areas. If the bit gets wet, stop operation and let the
bit dry out thoroughly. Concrete must be properly
cured before drilling. Concrete dust will solidify in
the bit if wet.
8. To release unit, pull strap forward and release from
strap mounting tabs. Compress the dust cap and
twist the spring rims to lock during storage.
9. Use a HEPA-filtered vacuum, or other OSHA
compliant method, to clean any residual dust from
the work area.
3
2
Hole Diameter
3/8"
1/2"
5/8"
3/4"
300
169
108
75
200
113
72
50
150
84
54
38
120
68
43
30
100
56
36
25
86
48
31
21
75
42
27
19
7/8"
55
37
28
22
18
16
14