"WERA 066635 871/1 BIT TORQ SET 5/16""/32 EXTRA TOUGH"

High quality bits for TORQ-SET® screws. The stronger flanks - when compared with the conventional TORQ-SET profile - result in 70% more breaking torque and thereby enhanced durability whilst at the same time providing a perfect fit in the screw head. Tough viscous for universal use. ¼" hexagon, suitable for holders as per DIN ISO 1173-D 6.3.