"For ultimate performance, this 1/4in. Angle Composite Die Grinder is the perfect choice. Powerful grinder features a composite grip for superior ergonomics and comfort and can be used in a variety of applications, including porting, weld breaking, deburring, polishing and grinding. Air Consumption CFM 6, Air Inlet Size in. NPT 1/4, CFM at Load 23, Min. Hose Size in. 3/8, Side Handle No, Speed RPM 20,000, Tool Length in. 6.93, Tool Weight lbs. 1.28, Variable Speed Yes, Collet Size in. 1/4, 6mm. Right-angle design fits into tight spots Lightweight composite housing protects tool from cold air and provides operator comfort Powerful 1/3 HP motor Durable ball bearing construction improves balance, reduces vibration and ensures longer life Built-in lubricating wick increases angle gear life 20,000 RPM free speed 6 CFM avg. air consumption 23 CFM @ load Safety-lock throttle is easy to use and prevents accidental startup Rear exhaust directs air away from the operator 1/4in. inlet 3/8in. min. hose size Includes 1/4in. collet, 6mm collet and wrenches"