SRT Precision Torque Driver 1. Exquisite outline 2. Brdirectional 3. Preset value 4. join head Torque Driver SRT Torque Driver is applied in fasten pieces ... , it can fasten the fastener according to pre-set torque driver. The products have bidirectional load, may pre-set the torque ... value, if surpasses the setting value, the driver will be idling, it can control the dynamics of thread ...