This Dewalt DW831 angle grinder with 5 in wheel has a 12-amp, 10,000 RPM motor, which provides high speed for fast material removal. Its high power-to-weight ratio allows for greater efficiency and reduced user fatigue. The adjustable guard can be adjusted to redirect sparks away from user, and the rear handle design ensures greater comfort and control. An external brush cap ensures easy servicing, while the sealed ball and roller bearings increases motor life. Three-years limited warranty.