Wera 05066485001 867/1 Z 1/4'' Hex Torx Insert Bits are high quality bits designed for Torx screws. Wera 867/1 Z 1/4'' Hex Torx Insert Bits are ductile and tough for hard materials. Wera 867/1 Z 1/4'' Hex Torx Insert Bits are designed with a 1/4'' hex drive using Wera's Connecting Series 1 and are suitable for holders as per DIN ISO 1173-D 6.3.