.1 hp Straight-Line Quick-Change Pencil Grinder 60,000 RPM, Turbine Air Motor, Rear Exhaust, 1/8 Inch Collet Dynabrades Wrenchless Pencil Grinder combines precision deburring, engraving and finishing with an exciting new feature: a convenient lever for changing your accessory in seconds! A true time-saver for high production workplaces such as jewelry manufacturers, tool & die shops, aerospace industries and more. High-efficiency turbine-driven air motor has no wearable gears, vanes or bladesOil-free operation minimizes maintenance time and repair costsAir motor controlled by patented governor, providing constant tool speed under loadTool housing has non-slip rubber grip for additional controlTactile cues on shaft end alert operator to rotating collet areaQuality high-speed bearings ensure consistent, reliable operation1/8 Inch and 3/32 Inch Collets are interchangeable within each model. Accepts variety of accessories Powers carbide burrs and mounted points, sold separatelyQuick-Change Lever Turn lever outward 90 degrees to open collet insert and easily replace accessory. Rapid-Stop Brake Built-in brake stops tool motorwithin one secondBuilt-In Swivel Provides 360 degrees of maneuverability for air lineHigh-Quality Air Line 1/4 Inch (6 mm) in diaand 6 feet (1.82 m) in length. One-Touch Operation Handy switch allows simple on/off operation. Product Information Brand Dynabrade Part # 60051 Collet 1/8 Inch Origin Country United States Product Type Pencil Grinders RPM 60000