Bosch® Model 1873-8, 7" large angle grinder with rat tail handle is extremely versatile because of it's ability to run on both AC and DC current. Precision spiral bevel gears, reinforced armature windings, epoxy-coated field windings and Service Minder™ brushes prove this grinder is built for the long haul. Three-position vibration control side and main handles, slim ergonomic shape and tool-free adjustable guard provide greater ease of use for extended periods.