This small electric drill is suitable for many materials, such as ordinary density plastics box, wood and so on. Easy to use and safe, it is your fine helper to do handwork and DIY. Features: This small electric drill uses 5V DC, which is safe. Most USB power adapters that output 2A can be used for power supply. Suitable for perforating ordinary density plastics and wood, such as airplane models, car models, bamboo boards, ice cream sticks, chopsticks, bird cages, animal tooth bones, shells, PCB circuit boards, books, resin, drip film jewelry, pearls, acrylic crystal, etc., the thickness of all materials cannot exceed 8mm. This product is portable and compact, you can take it with you and use it wherever you want. Using pure copper motor core which is fine quality, at the same time the grip feels comfortable and not rough. Specifications: Material: ABS+metal Housing material: plastics Color: black Type: hand drill Power supply voltage: 5V DC Working current: 2A (locked-rotor current: 3A) Power matching: 360 motor Motor shaft diameter: 2.3mm / 0.09in Motor speed: no load 11000RPM Power interface: 1.5m USB cable Chuck size: brass 2.3-1.2 (chuck range: 0.7-1.2mm) Item size: 123 * 30mm / 4.8 * 1.2in Item weight: 121g / 4.3ounce Package size: 130 * 60 * 40mm / 5.1 * 2.4 * 1.6in Package weight: 131g / 4.6ounce Packing List: 1 * Hand Drill 3 * Small Drill Bit (diameter: 1.1mm) 1 * Wrench