14 In 1 Cordless Rotary Tool Mini Polish Nail Tool Adjustable Speed For Carver Engrave Rout Drill Sharpen 3D Printer Model DIY Product Description: Specifications: Power: Single Phase ,50-60HZ, Double Insulated RPM: Single Speed:20,000 Variable Speed: 3000-20,000 Collet: 2.4 or3.2mm Spring Chuck Type: 0.3-3.2mm Diamensions: 160mm(L)*24mm diameter Operation: 1. This Tool is design for carver,engrave,rout,grind,sharpen,sand,polish,drill and more 2. Unplug the tool form electrical outlet before loading a bit 3.Press shaft lock button,Use the collet wrench to loosen the collet nut. inset the bit (not included),and tighten the collet securely. But avoid excess tightening of the collet nut and never use a damaged it. 4.There is an On/Off switch. When the switch is on, the tool runs at 3,000RPM. There is a switch indicator with an orange line on it. Slide the switch to find the speed needed from 300-20,000RPM. Slide the switch to the black dot for complete stop 5. When Finished , Turn off the tool and unplug it Pacakge Include: 1pc* Mini Polish Nail Machine 12pcs* polish accessories 1pc* charging cable