Features: Built in 4.2V lithium battery high power electric drill with regulating speed: 7000/8500/10000/11500/13000rpm/min, five speeds and LED lights display. Small volume, light weight, easily carry, comfort grip handle, offers better control while drilling convenient and durable to use. Equipped with 62pcs accessories for drilling,all ready and complete. Perfect electric grinder for engraving, milling, grinding, polishing, removing and drilling, necessary for DIY carving and grinding. Suitable for jade agate, nuclear carving, wood carving, grinding aluminum plate, thin copper board, plastic board, chipboard, printed circuit board, epoxy board. Specifications: Type name: Mini Drill Material: ABS Built in 4.2V lithium battery Speed: Five Speeds: 7000/8500/10000/11500/13000 rpm/min Color: As Pictures Weight of the whole set: 366g Size:Mixed Package Includes: 1 Piece Wool Head- Cylinder 1 Piece Wool Head- Cone 1 Piece Collet 3.0 1 Piece Emery Grinding Needle- Elliptical Cylinder 25 Pieces Sandpaper Ring 1 Piece Stainless Steel Slice 5 Pieces Carborundum Grinding Needle （Elliptical Cylinder Ball Point Blunt 3 Pieces Sandpaper Ring 1 Piece Small Rubber Shaft 1 Piece Stainless Steel Cutting Blade 1 Piece Red Gasket Connecting Rod 6 Pieces Drill 0.5/1.0/1.5/2.0/2.4/3.0 5 Pieces Collet 1 Piece T Flint Diameter 8 Blue Green 1 Piece Round Flint Green Diameter 6 1 Piece Tapered Firestone Pink Diameter6 1 Piece Tapered Flint White Diameter 6 1 Piece Spherical Flint Pink Diameter 6 1 Piece Carborundum Needle Point Small Cylinder 1 Piece Small Wool Ring 1 Piece Big Wool Ring 1 Piece Wool Wheel Connecting Rod 1 Piece Usb Cable 1 Piece Storage Box 1 Piece Usb Electric Drill 1 Piece Black Tool Bag note: Before using additional accessories not included in this set, compare the maximum allowed RPM- of that specific accessory with the RPM- of this tool. In case- of electrical or mechanical malfunction, immediately switch off the tool. Do not activate switch when changing accessories. Never use the shaft lock when toll running.