7 Inch (178 mm) DiaRight Angle Disc Sander 1.3 hp, 8,500 RPM, Rotational Exhaust, 5/8 Inch-11 Spindle Thread Includes 51151 Backing Pad, 7 Inch (178 mm) diameter, plus mounting hardwareAccepts optional 7 Inch (178 mm) diameter Abrasive Discs with 7/8 Inch (22 mm) center hole. Dynabrade's 1.3 hp (970 W) Right Angle Sander offer countless grinding and material removal solutions to industries such as metal/stainless steel fabrication, composites, masonry, ironwork and general weldingDesigned to the Dynabrade standard of excellence, these tools offer a wide array of features to increase efficiency and maximize operator comfort!Vibration Dampening Side Handle Specially designed to reduce vibration transfer to operatorRemovable for left or right hand useRotational Exhaust System Rotates a full 360 degree to ensure that exhaust is directed away from operator. Cast Aluminum Construction Tool housing and handle made of solid cast aluminumSafety-Lock Throttle Lever Prevents accidental start-up of toolLever has no sharp edges or pinch-points. Wick-Lube System for Longer Gear Life extends gear life with simple lubricationAll models include Gear Oil and Gear Oil GunInsulated Throttle Handle Reduces cold air transmission to operator's handHandle position is adjustable, increasing comfort and efficiency. Robust 1.3 hp Air Motor 1.3 hp (970 W) governor-controlled air motor delivers powerful, efficient performanceConvenient Spindle Lock Allows quick and easy change of grinding wheel or abrasive discLess downtime! Product Information Brand Dynabrade Part # 53868 Origin Country United States Product Type Disc Sanders RPM 8500 Spindle Thread 5/8 Inch - 11 Male