The Atlas Copco Cobra Combi is a 55 lb gas-powered combination paving breaker and rock drill for crews working beyond compressor and power-pack reach. A 2.7 hp two-stroke engine delivers 17 ft-lb of impact at 2,700 BPM through a 7/8 x 4-1/4 in. chuck that accepts both breaker steels and rock-drill shanks one machine covering breaking and drilling for utility, railroad and remote jobsites, part of the Atlas Copco gas rock drill line.

Off the grid the Combi breaks pavement, tamps railroad ties, and drills anchor and foundation holes on a 0.32 gal fuel tank no hose, no compressor, no power pack. Standard 7/8 x 4-1/4 in. hex shank drill steel drops straight into the chuck for drilling work. If dedicated air tools fit your fleet better, compare the pneumatic models under rock drills, or start with the rock drill buyer’s guide.

• 2.7 hp two-stroke gas engine; fully self-contained with no compressor, hose or hydraulic power pack
• 17 ft-lb impact energy at 2,700 BPM for breaking, tamping and drilling work
• 7/8 x 4-1/4 in. chuck accepts paving-breaker steels and rock-drill shanks
• 55 lb tool weight, 29 in. overall length, 0.32 gal fuel tank
• Guaranteed sound power level 108 dB; sound pressure level 95 dB(A) per ISO 11203
• Applications: remote pavement repair, railroad-tie tamping, off-grid anchor and foundation drilling, emergency utility repair
• Stocked by Crowder Supply in Denver with steels, shanks and replacement engine parts