Specification: Condition: 100% Brand New Material: Metal + Plastic Color: Black Power Supply: DC 5V Rated Output Power: 18W No-load Speed: 11000rpm Suitable Collet Range: 0.7-1.3mm Drill Length(not included the drill bit): approx. 110mm / 4.33inch Drill Diameter: approx. 30mm / 1.18inch USB Cable Length: approx. 1.68meter / 5.51ft Weight: approx. 119g Package Included: 1 x Electric Drill with USB Cable(adapter is not included) 3 x Drill Bits(1.1mm in diameter) 1 x Wrench Note: 1. This product is not suitable to drill these material, such as bodhi, thick metal, wall and stone. 2. There may be some error in drilling precision. 3. USB adapter may exist incompatibility. 4. It can not be connected to grinding or polishing machine.