The Fein WSG17-125PRT 5" Compact Angle Grinder features the 1500 watt, 5" wheel diameter max, AutoStop switch, extended carbon brush service life, ErgoGrip for fatigue-free work, and full metal gear head that are used for grinding for a long peroids of time that due to the light weight of the grinder. It also has the self-start lock and HO7 industrial strength rat tail cable.