The Atlas Copco DKR 36R is a 9 lb class handheld pneumatic rock drill and chipping hammer for light chipping, spot drilling and small-diameter anchor-bolt holes. It runs 2,820 BPM with 250 RPM rotation through a 3/4 x 3-3/4 in. hex chuck, weighs 13 lb, and sits at the light end of the Atlas Copco rock drill catalog stocked by Crowder Supply.

Its 21 CFM draw at 90 PSI through a 3/4 in. NPT inlet is small enough for a 50 CFM utility compressor, which is why utility, masonry and finish-rock crews keep it on the truck for cleanup, rebar trimming and post-blast spot work. Keep pneumatic rock drill oil in the airline whenever the tool is hitting, and see the wider range of handheld rock drills for heavier production classes.

• 2,820 BPM impact rate with 250 RPM rotation for chipping and spot drilling
• 3/4 x 3-3/4 in. hex chuck accepts standard light-chipping drill steels
• Low 21 CFM air draw at 90 PSI through a 3/4 in. NPT inlet
• 13 lb tool weight for one-operator utility and detail work
• Applications: light chipping, spot drilling, cleanup, rebar trimming and small anchor holes
• A 50 CFM contractor compressor supports single-tool operation on site
• Stocked by Crowder Supply in Denver with drill steels and replacement parts