Application:Suitable for bits with 4 mm Halfmoon drive (and Wera Serie 9) and 4 mm HIOS drive (and Wera Series 21) Design:With quick-release chuck for rapid bit change Accuracy:±6 % (DIN EN ISO 6789). Numerical torque value scale. Reliable slipping mechanism and acoustic signal when reaching the set torque. Handle:Kraftform with non-roll feature, multi-component
