The Makita 4-1/2 in. SJS High Power Angle Grinder combines 13 AMP variable speed power with comfort and motor-protection features for longer-lasting stone grinding and polishing performance. The angle grinder is engineered with Makita's innovative SJS™ mechanical clutch system to protect the gears for longer tool life. 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. The angle grinder's 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.

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