CHICAGO PNEUMATIC Super Heavy Duty Air Hammer CP717. This is the most powerful CP Hammer for automotive, truck, or off-road equipment use. 498 diameter chisel shank to handle larger chisels and tool torque. Positive action trigger for precise speed control." Piston Stroke: 2 11/16" Avg. Air Consumption: 3 CFM Air Inlet NPTF in. Hose Size: 3/8 Sound DBA Pressure: 95 Vibration: 1 m/s Blows per Min. The item "CHICAGO PNEUMATIC Super Heavy Duty Air Hammer CP717" is in sale since Sunday, March 5, 2017. This item is in the category "Home & Garden\Tools & Workshop Equipment\Other Tools & Workshop Equipment". The seller is "directtoolsource2012" and is located in Barto, Pennsylvania. This item can be shipped worldwide.