Motor provides high power and speed for all 2in. grinding applications AC/DC capacity works off welding machines and generators for increased productivity and versatility External brush caps for easy servicing Precision 1/4in. collet with 1/8in. reducing sleeve for maximum gripping strength - allows user to operate both 1/4in. and 1/8in. shaft accessories Heavy-Duty 2in. Die Grinder is one of many Corded Die Grinders available through Office Depot. Made by DeWalt.