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 Pre-set torque: 0.3 Nm, 1.2 Nm Accuracy:± 6% (DIN EN ISO 6789). Reliable slipping mechanism and acoustic signal when reaching the set torque. Handle:Kraftform with non-roll feature, multi-component