871/2 TORQ-SET® Mplus bits, 1/4", x 32 mmHigh 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. 5/16", hexagon, suitable for holders as per DIN ISO 1173-D 8.