Wera 05066949001 867/2 Z 5/16'' Hex Torx Insert Bits are high quality bits for recessed Torx screws. Wera 867/2 Z 5/16'' Hex Torx Insert Bits are ductile and tough for hard materials and universal use. Wera 867/2 Z 5/16'' Hex Torx Insert Bits feature a 5/16'' hex drive using Wera's Connecting Series 2 and are suitable for holders as per DIN ISO 1173-D 8.