This American Pneumatic model 117 chipping hammer rental can be used for scaling, chiseling, removing concrete build-up from the side of cement mixers, light concrete demolition, cement finishing, form stripping, etc. It weighs 30 pounds, has a length of 22-1/2" inches, and has 1,140 blows per minute. It requires our 185 CFM air compressor. Also known as jack hammer or concrete breaker, concrete chipper, power chisel or braker