FTVOGUE Air Hammer Bit Smoothing Pneumatic Chisel Air Hammer Extended Length Hammer Tool Air Rivet Hammer Tool Easy to Clean : The shank chisels adopt a polishing treatment which make them a smooth surface so that no can remain once being washed by water. Please Note: The air chisels need to be installed in the pneumatic sewing machine, and connected with the air compressor for using. Quality Material : Manufactured with heat treated high carbon steel for necessary hardness and durability. Specification: Condition: Brand New Material: Chrome molybdenum steel Color: As Pictures Shown One Hammer Length: 178mm/7.0in, Plane diameter: 25mm/1.0in One Hammer Length: 100mm/3.9in, Plane diameter: 30mm/1.2in One Hammer Length: 80mm/3.2in, Plane diameter: 35mm/1.4in Weight: Approx.136g~206g/4.8oz~7.3oz Package list: 1 * Pneumatic Air Hammer Bit Note: 1. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.