The DEWALT 1-1/2-Inch Die Grinder has a 3.0 Amp, 25,000 rpm motor that provides high power and speed for all 1-1/2-Inch grinding applications. AC/DC capacity works off welding machines and generators for increased productivity and versatility on the job site. A convenient paddle switch allows for easy gripping and comfortable use. The precision 1/4-Inch collect securely holds all proper accessories and can use a 1/8-Inch reducing sleeve as optional accessory. The switch on this grinder cannot be locked in the on position.