Air Hammer, 3500 BPM, 2-5/8" Stroke. The 116 standard air hammer is ideal for fast cutting action, and excels in medium exhaust systems, panel cutting, and general repair work. Reliable: This hammer’s alloyed steel barrel and heat-treated piston prolong your tool’s life and make sure it delivers the same quality output every time. Lightweight: Built for user comfort, this tool is lightweight and easy to use, so you never have to overexert yourself when working a job. Power: With a built-in power regulator you have full control over the speed and power output of your hammer, up to 3,500 blows per minute.