Black&Decker - G720R Angle Grinder 4inch 820w Features Powerful 820 Watts Angle Grinder running at 12000 rpm with excellent body grip 820 Watts Powerful motor makes grinding and cutting operations run smoothly Runs at 12000 rpm making all grinding operations easy and fast Ergonomically designed with perfect body grip Ideal for metal grinding, polishing and Stone, Granite and metal sheet cuttings