The Mighty Seven Heavy Duty Air Hammer with Long Barrel, No. SC-212C, features an industrial-grade aluminum body, alloyed steel cylinder, and hardened piston. It delivers 2,200 bpm and has a 3-1/2” stroke length. The air hammer comes with a 4-pc round shank chisel set, designed for cutting and shearing various surface and material. It's held by a spring-type quick-change retainer and has a one-year warranty.