The GD0800C is powered by a 6.6 A motor that delivers 7000 to 28000 RPM with soft start for smooth start-ups. The electronic speed control maintains constant speed under load, and a variable speed control dial allows the user to match the speed to the application. Consistent with other models in Makita®'s expanding grinder line-up, the GD0800C features labyrinth construction, a series of channels engineered to capture dust and debris and prevent contaminants from penetrating the gear box and front armature bearing for longer tool life. In addition, the protective zig-zag varnish seals the motor and bearings from dust and debris by creating a barrier under rotation. Makita® Die Grinder, Corded, Tool/Kit: Tool, 1 in Wheel Dia, 3-1/2 in, 1/4 in Collet, 7000 to 28000 RPM, 120 V, 6.6 A, Aluminum/Polymer Housing, Straight, Black/Metallic/Teal, Lock-On Switch, 14-5/8 in L