Industry standard high speed polisher. Heavy-duty variable speed (0-1,000/3,000 rpm) electronic polisher features a powerful 8.0 amp, 120V AC/DC, all ball-bearing motor for long life. Electronic module provides full power, even under load, from 1,000-3,000 rpm. Conveniently located variable speed dial lets you adjust speed for different materials and applications. Heat-treated, precision-cut gears for smooth operation. External brush caps for easy servicing and spindle lock for easy pad changing.