TUF TWSB Torque Screwdriver 扭力起子(1/4"起子頭)
* Tolerance of torque± 6%* 6.3mm (1/4") Hex drive for bit* Automatic adjustment knob design* Easy-to-read laser scale* Ergonomic comfort rubber Grip* Quality meets DIN ISO 6789 & ASME B107. 300-2010