1Device is equipped with a protection system, when overload protection function is activated, handle will stop working to avoid overheating due to improper operation. 2It has a powerful 35000 rpm motor with adjustable speeds dial and digital speeds display. 3Smooth and quiet machine head, with minimal vibration and noise, digital display design can display speeds and power status and know running status of machine. 4Portable hook design, with a clip on the back, it can be easily nailed anytime and anywhere when clipped on the waist. 5Handle shape is all metal, suitable for mold cutting, engraving, denture grinding, nail polish, nail removal, dead skin removal, drill removal, etc.