Power supply: 220-230v 50hz; The angled design is more suitable for narrow working space; Contimuous rotation without impact, much more efficient than hydraulic wrench; Intelligent torque control system, with fault self-checking function and power-off Memory function; Torque precision:¡¨¤4%, repeatability: ¡¨¤1% double speed design, high/low speed Can be shifted freely; Two ways of torque setting: - set the torque manually - system recommends torque as per bolt parameters; Human-computer interface. Torque value is shown directly on lcd display. Torque table, is not needed; Electronic system against over-tighten and the clutch against overload, they can protect driving components effectively; Intelligent motor-speed control system, it makes the using life of carbon-brush 5-10 times longer than other brand wrenches. 1 strong abs case for 1 pc 340*210*350mm 8kgs