4 1/2" Angle Grinder is a light, ergonomic grinder, with a slender grip circumference that allows users to work comfortably for extended periods. This 4.2 lb tool delivers plenty of power, with a 7.5 Amp motor that produces 11,000 no-load RPM. It has directed air flow that diverts dust away from vital components. The Service Minder brush system shuts off the tool when preventative maintenance is required, which helps to eliminate guesswork. This grinder has a two-position side handle. It has a burst-protection quick adjustable guard designed for user protection, as well as a large spindle lock for easy disc changes.