This tool will be useful to: cut off welded studs, remove broken window tracks, cut worn door hinge pins, cut through rusted or frozen bolts, prepare area for proper weld and remove rust and paint. Other uses include: shape body filler, remove old body filler, and to cut off exhaust pipes and blown out mufflers. Features and Benefits Extended length for better reach; gets in places other tools cant Compact, tapered gear housing with close-coupled grinding wheel Powerful lightweight motor Reaches inside corners of as little as 30 degrees with 4" wheel 15,000 RPM for fast stock removal 82-86 dBA Grinder disc size: 4-inch (1/16 X 3/8) (1/8 X 3/8) Air Flow Pressure: 90-120 PSI Average Air Consumption: 7.8 CFM Overall Length: 15.5" (393 mm) Item Weight: 4 lbs (1.81 kg) Kit Includes AirCat 6275 Corner Air Die Grinder