The economical air hammer for fast cutting action, especially for medium exhaust system, panel cutting, and general repair work Up to 3,500 blows per minute Alloyed steel barrel and heat-treated piston for longer life Built-in power regulator and trigger control Kit includes: 116 Air Hammer (1) Punch Chisel (1) Edging Tool (1) Tail Pipe Cutter (1) 3/4" Wide Blade Straight Chisel (1) Cutting Chisel .