Foredom's K.1030 Micromotor runs on a charge for 5 hours or all day long when plugged in. Ideal for individuals who work at multiple work stations and for onthego use outdoors, at craft shows, and where electric is not readily available. Features pocketsize control box with digital speed display, slender and lightweight handpiece, forward and reverse operation up to 30,000 RPM and all of the power you need for most every rotary job.