Features1Made of aluminum alloy, good heat dissipation effect and long service life. 2With slight vibration, the handle can be locked, making the operation safer. 3Adjustable speed, 0?35000rpm, can also support forward and reverse rotation. 4The ergonomic handle design is comfortable to hold for a long time and not feel tired. 5The operation is simple and the drill bit can be easily replaced without tools.SpecificationItem Type: Electric Nail Drill Pen HandleMaterial: Aluminum AlloySpeed: 35000rpmSize: Approx. 14.5 x 2.5cm/5.7 x 1.0in (Manual measurement, there will be a little error)Characteristics:1. High-quality material, pen design, comfortable grip, easy to use, sturdy and durable2. Two optional adjustable directions of forward and reverse3. Slight vibration, extremely quiet and stable operation4. Drill bit can be easily replaced without tools5. High speed 35000 rpmPackage List1 x Electric Nail Drill Pen Handle