Tamco Toku THA-3B Chipping Hammer .680 Round Shank 2-17/32" Stroke JCO-3R-RVST Toku's THA series of gooseneck chipping hammers are available in 1" through 4" stroke lengths. The THA series utilizes a saw tooth connection between the handle and cylinderwhich provides a more secure; positive fit. The THA series offers the perfect compromise between quality; performance and value. Toku's rugged TCH series of D-handle chipping hammers are available in 2" through 4" stroke lengths. TCH chipping hammers offer a more rugged solution for situations where durability is paramount. All Toku chipping hammers feature drop forged alloy steel handles; heat treated alloy cylinders; and exhaust deflectors. All chippers are available in your choice of .580" hex or .680" round shanks with either round or oval collars. SPECIFICATIONS: Shank Size: .580" Hex or .680" Round Shank Stroke Length: 2-17/32" (64mm) Piston Diameter: 1-1/8" (28.54mm) Impact Rate: 2;200 B.P.M. Weight: 15 lbs. (6.8 kg.) Overall Length: 17-23/32" (450mm) Air Consumption: 31.8 C.F.M. Air Inlet: 3/8" NPT Hose Size: 1/2" (12.7mm) Warranty: 1 Year Limited Warranty " Tamco Toku THA-3B Chipping Hammer .680 Round Shank 2-1/2" Stroke JCO-3R-RVST