Features 1、SCOPE OF APPLICATION: Electric nail drill machine handle can be used in laboratory, jadestone, abrasive processing, handicrafts, decorative carving and grinding, copper and porcelain opening and polishing process 2、WIDE APPLICATION: The nail drill machine pen handle can be applied to brushed micromotors with strong compatibility, and there is no need to worry about can not use after buying back 3、POWERFUL AND EFFICIENT: Nail drill machine pen handle with large torsion, powerful power, measured 35000RPM, low vibration, low noise, efficient and stable. No load 35000 RPM, can switch CW and CCW rotation 4、GOOD HEAT DISSIPATION: Nail polishing machine handle has high stability and special internal air circulation structure and fan, you have no need to worry 5、USER FRIENDLY DESIGN: Nail drill machine pen handle with well covered with three disc springs and dustproof design; Installation of special ball bearings; Portable design (connector for power control unit) Specification Item Type: Electric Nail Drill Machine Handle Speed: 0-35000RPM(CW and CCW) Chuck Type: Single card Chuck Diameter: Approx. 2.35mm / 0.09in Output Power: 40W Handle Length: Approx. 158mm / 6.22in (excluding grinding head) Package List 1 x Carbon Brush Handle 1 x Handle Tool 2 x Carbon Brush