Electric Micro Motor Dental Micromotor Marathon N7 35,000rpm Multipurpose Micromotor for dental work Good work for polishing, cutting, milling, trimming, grinding, casting moulds or materials and finishing surface Dust seal protection for excellent durability Installed special ball bearings for super high speed (less heat and low noise) Another virtue is non-stage speed system (it's well designed to output from 0--35,000rpm by using non stage speed system)
