... carver, engrave, rout. Grind, sharpen, sand, polish, drill and more Unplug the tool form electric outlet before loading ... wrench to loosen the collet nut. Insert the bit, and tighten the collet securely,. But avoid excess ... the collet nut and never use the damaged bit.There is an off/on switch. When the ... Electric Pen-Shape Nail Drill1 x AC adapter6 x Bit Acrylic UV GEL1 x User manual (in English) ...