Features: <br>- Small volume, light weight, easily carry.<br>- Comfortable grip handle, offers better control while drilling.<br>- The grinder engraving kit is necessary for DIY carving and grinding.<br>- Perfect electric grinder for cutting, engraving, milling, grinding, polishing, removing and drilling. <br>- Suitable for jade agate, nuclear carving, wood carving, grinding aluminum plate, thin copper board, plastic board, chipboard, printed circuit board, epoxy board.<br><br>Specifications:<br>Size: 90*25mm<br>Rated speed: 8500 (rpm)<br>Material: Aluminium alloy<br>Power supply voltage: 5-6V<br><br>Package included:<br>1 x USB Electric Drill<br>3 x Electric Drill Bit Collets (1.0mm)<br>1 x Hexagon Screwdriver<br>1 x USB Cable<br><br>Notes:<br>1. Manual measuring, please allow 1 ~ 3mm error,thank you.<br>2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.