The Craftsman 4.5 '' (11.5 cm) cordless angle grinder is powered by a high-efficiency motor with 8500 RPM for aggressive grinding. Its cast metal gearbox dissipates heat during prolonged use. The tool has a tool-less guard which allows for quick and easy adjustments and a locking device for quick blade changes. Its contoured overmolded handle offers more comfort during use and 3 positions provide adequate control in different applications. Disk size 4.5'' (11.5 cm) , the kit includes ( 1) CMCG400 small angle grinder, (1) grinding guard, (1) grinding wheel, (1) spanner, wrench. Battery and charger sold separately.