Our 9 in. grinder Offers a Unique Labyrinth Construction to Seal the Motor and Bearings From Outside Contamination, Which Increases the Life of the Tool. It Features a Powerful 15 Amp Motor for More Output and Increased Performance. With 6,000 RPM, Fast Stock Removal Will Not Be A Problem. It Offers a Large Trigger Switch for Easy Operation. Rotatable gear housing can be positioned at every 90-degree. Automatic Brush Cut-out System. Rear handle with soft grip for operator comfort.