Chicago Pneumatic 717 Extra Heavy Duty .498 Zip Gun Air Hammer. This powerful air hammer handles volume front end work, king pin removal, removal and installation of bulldozer walking beam bushings, removal of truck anchor springs, and heavy-duty spring bushings. Specifications: chisel shank opening - .498", bore diameter - 3/4", piston stroke length - 2 11/16", cfm - 7, hose size - 3/8", blows per minute @ 90 psi - 1800.
