The Stanley FatMax® V20 18V Angle Grinder offers new and improved battery technology, with no memory effect and minimal self-discharge. The Angle Grinder features a powerful high-performance motor providing 8,500 RPM for aggressive applications, and a cast metal gear housing to dissipate heat during extended periods of use. Complete with a 3-position handle for comfort and control that is coupled with an integral lock-on switch for reduced fatigue during extended use. Part of the Stanley FatMax V20 18V Cordless System – power all your V20 tools with a common new and improved 18V lithium-ion battery for longer runtime and power to get the job done.