Makitas 5 SJS Angle Grinder combines 13 AMP variable speed power with comfort and motor-protection features for longer-lasting stone grinding and polishing performance. The 9565CV is engineered with Makitas innovative SJS mechanical clutch system to protect the gears for longer tool life. 13 AMP Power with SJS to Protect Gears. The 9565CV is powered by a 13 AMP motor with soft start for smoother start-ups. The 5-stage variable speed dial (2,800 10,500 RPM) allows the user to match the RPM to the application. The electronic limiter stops the motor and reduces accidental motor overload and burnout, and the electronic speed control maintains consistent speed under load. Labyrinth construction protects the motor with a complex set of channels, prohibiting dust and contamination. In addition, the protective zig-zag varnish seals the motor and bearings from dust and debris by creating a barrier under rotation. The 9565CV is engineered with SJS mechanical clutch system, an innovation from Makita that protects the gears by automatically disengaging the motor should the grinding wheel accidentally catch or bind. Includes (1) 5 In. x 1/4 In. x 7/8 In. INXO grinding wheel, 36 grit, (1) 5 In. tool-less wheel guard, (1) lock nut, (1) lock nut wrench, (1) inner flange, and (1) side handle.