The Bosch GWS8-45 4-1/2 inch Angle Grinder is a light, ergonomic grinder, with a slender grip circumference that allows users to work comfortably for extended periods. This 4.2 lbs. tool delivers plenty of power, with a 7.5 Amp motor that produces 11,000 no-load RPM. Bosch's Service Minder brush system shuts off the tool when preventative maintenance is required, which helps to eliminate guesswork.