... , rout. Grind, sharpen, sand, polish, drill and more Unplug the tool form electric outlet before loading ... ,. But avoid excess tightening of the collet nut and never use the damaged bit.There is an ... or Home Use 4.Suitable for pedicure and manicure5.Quiet and Smooth 6.Portable & Easy to carry ... engraving, routing, grinding, sharpening, sanding, polishing, drilling and so on 8.The nail file can be used ...