The Revolution series offers the torque and muscle required for a wide range of applications. Its precision gearing and components contribute to a long and reliable life. You can depend on the performance and reliability. CFM at Load: 15, Speed (RPM): 25,000, Air Inlet Size (in. NPT): 1/4, Min. Hose Size (in.): 5/16, Collet Size (in.): 1/4, Side Handle: No Straight with 3in. extension .3 HP air motor Precision gearing and components Compact, contoured shape fits naturally in users hand Composite grip over polished aluminum housing reduces vibration and noise Integral trigger safety lock Wrap-around exhaust ports direct air away from work and operator