Package included: 3PCS Heavy duty Hammer Bits and 1 PCS Spring
Air Hammer Bit Tool is for 150mm, 190mm, 250mm gun air hammer and gas shovel, handle diameter approx. 10mm
Air hammer bits use for Tire Repair, Windpipe Pressure Seam Edge, masonry and concrete demolition, hard surface break up and chiseling
Air hammer bit set is manufactured with high hardness steel for necessary hardness and durability
Note: The air chisels need to be Installed in the Pneumatic Sewing Machine, and Connected with the Air Compressor for Using