Best quality TBK BK008 electric screwdriver with 24 kinds of bits suitable for disassembly and repair of most mobile phones tablet watch. TBK electric screwdriver set adjustable torsion class urgent stop dismantling Charge bolt driver tools. Specification: Model: TBK BK008 Electric Screwdriver. Product torsion: 0.1-2.5kgf.cm. Safe speed: 395r/min. Battery capacity: 800mA. Host size: 130 20mm. Features : Voltage: 3.6V. Power supply mode: direct current. Torque control: Yes. Whether there is a positive or negative turn: Yes. 8 stall adjustment, brakes. The latest design, using various occasions, such as mobile phone maintenance and disassembly, mechanical maintenance and disassembly, precision ammeter disassembly and assembly, really adapt to each location