USB charging polishing pen

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USB charging polishing pen

4.2v/10w/300MA

three speed regulation, first gear speed is 5000 RPM, second gear speed is 10000 RPM, third gear speed is 18000 RPM.

The battery capacity is 300 mA

Battery voltage: 4.2V

Suitable for: miniature engraving, jewelry engraving, nail grooming, etc.