This professional-grade pneumatic tool features an alloy steel, curved-throttle lever with built-in wrist support, 3M gripping material molded into the interchangeable comfort grip, conveniently located speed control dial and internal muffler. Includes 3M Stikit Disc Pad. Orbital offset is 5/16". Designed for use at up to 12,000rpm. Newly designed wrist rest for more supportRecessed lever eliminates pinch pointsComposite cover prevents cracked housings