The 121-K6 Super Duty Air Hammer Kit combines the convenience of this air hammer into a kit. The kit includes 121-Q Super Duty Air Hammer, blow-molded black carrying case, and (6) six assorted chisels, including (1) 3/4" flat blade chisel, (1) punch chisel, (1) claw ripper-edging tool, (1) single blade cutter, (1) kwik cutter, (1) vee chisel-spot welder breaker.; Features; Up to 3,000 blows per minute; Alloyed steel barrel and heat-treated piston for longer life; Built-in power regulator and trigger control