.1 hp Straight-Line Pencil Grinder 60,000 RPM, Turbine Air Motor, Rear Exhaust, 1/8 Inch Collet, with Mount Stem Tool has integrated collet with 1/8 Inch Collet Insert (51659) Turbine-Driven Air Motor Models are ideal for precision deburring and finishing on a variety of surfacesHigh-efficiency air motor has no wearable gears, vanes or bladesOil-free operation minimizes maintenance time and repair costsAir motor is controlled with patented governor, providing constant tool speed under loadQuality high-speed bearings are included. Housing has non-slip rubber grip for additional controlTactile cues on shaft end alert operator to rotating collet area. Changing of attachment is achieved with easy, two-wrench maneuverIncludes high-quality flexible air hose. Teal Tool Cap for easy tool speed identification when using multiple modelsModel includes Mount Stem for use on robotic arms and other fixed mount applications. Part # 51740 Sold in qty's of 1 Collet 1/8 Inch Country of origin United States Product type Pencil Grinders RPM 60000