Multi-purpose machine! Bring more convenience to your life. Can be used for cuttinggrindingpolishingengravingdrilling by changing collet. Materials Aluminum alloy Product Weight 216G Product Size(L x W x H) 11.5 2.5cm / 4.5 1inche Package Contents DIY Drilling Electric Tool 1 Set Power supply voltage 220V Clamping range 0.7-1.2mm Step 1:The drill must be drilled vertically during operation. According to the hardne of the object, pre down slowly, and do not pre down hard and fast, which will cause the drill to stick. Step 2:For hard objects, it is recommended to drill to a depth of 1mm, pull it back and drill again to avoid sticking. Multifunctional:Small size, lightweight, easy to carry. The comfortable handle provides greater control whencutting, engraving, milling, grinding, polishing, removing, and drilling. Wide Application:Ideal for drilling holes inplastic, wood, acrylic, pearls, paper products, thin aluminum sheets, PCB circuit boards, linden shells, walnut, and nutshells. USB charging:Equipped with a USB data cable, you canuse the mobile phone fast charger head, power bank, and computer to charge it,which is convenient and fast. High-quality material:aluminum alloy shell, sandblasted appearance, long service life. Metal collet nut, the collet is stable and does not drop the drill. Simple design foreasy operation and quick change of collet or other acceories. Note Due to manual measurements, please allow slight measurement deviations. Due to the different display and lighting effects, the actual color of the item may be slightly different from the color displayed on the picture.