Application:Suitable for 1/4" DIN ISO 1173 C 6.3 and E 6.3 hexagon insert bits and Wera Series 1 and 4 Design:Rapidaptor rapid-in, rapid-out, rapid-spin, chuck-all and single-hand technology, non-magnetic 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