The small drill can use 5V power. Great helper for your hobby tool productivity. Mainly be used to drill wooden board, plastic board, paper sheet(thickness within 10mm); aluminum board, circuit board(thickness within 10mm). Features: Mini size, light weight, easy to carry. Powered by USB cable, convenient to use. With a switch on USB cable for easy control. Made of fine quality material, stable and practical in use. Cylinder drill body is comfortable to hold. Mainly be used to drill wooden board, plastic board, paper sheet(thickness within 10mm); aluminum board, circuit board(thickness within 10mm). Specification: Material: Metal Color: Black Power Supply: 5V Rated Output Power: 18W No-load Speed: 15000rpm Suitable Collet Range: 0.7-1.2mm Drill Length(not included the drill bit): approx. 110mm / 4.33inch Drill Diameter: approx. 30mm / 1.2in Drill Bit Diameter: approx. 1.1mm USB Cable Length: approx. 1.95meter / 6.4in Weight: approx. 115g / 4.1ounce Item size: 110 * 30 * 30mm / 4.3 * 1.2 * 1.2in Package size: 150 * 55 * 55mm / 5.9 * 2.2 * 2.0in Package weight: 120g / 4.2ounce Package List: 1 x Electric Drill with USB Cable(adapter is not included) 3 x Drill Bits(1.1mm in diameter) 1 x Wrench