Air Chipping Hammer Industrial Shank Size 0.680 In. Round Shank Type 2200 Blows per Minute Stroke Length 2-1/4 In. Average CFM @ 15 Second Run Time 7.0 28.0 CFM @ Full Load Air Inlet 7/8 In.-24 Min Hose 1 In. Overall Length 13-3/4 In. Required Pressure 90 psi D Type Handle Type