"Application: Suitable for 1/4"" hex bits as per DIN 3126-C 6.3 and E 6.3, ISO 1173 and Wera series 1 and 4, Wera adaptor 870/1 for 1/4"" socketsDesign: Drop-forged full steel design, fine-tooth ratchet mechanism, small return angle of 6°, forward and reverse drive switchHandle: Kraftform handle with proven Kraftform geometry provides perfectly designed finger contact zones, ergonomic ratchet head and handle "