Air Hammer, Manufacturer suggested retail price. $90.22 401Shank 11/16in. Air Hammer Bore 2000BPM Standard Duty Air Hammer An economical air hammer with a longer piston stroke, this tool is designed for exhaust work, bolt cutting, and front-end work. The trigger control and a built-in power regulator give you full control of the speed and power. Longer stroke piston Alloyed steel barrel and heat-treated piston for longer life Up to 2,000 blows per minute Manufacturer: Ingersoll Rand 1 yr warranty on material and workmanship