The kwb torsion bits are particularly suitable for tough screw applications. The extra-long design of 100 mm allows access to deep-seated or hard-to-reach screws. The maximum length torsion zone enables the twisting of the bit tip under peak loads, protecting the bits from premature breakage and thereby increasing their service life. The Mega Grip ribs prevent the bit from slipping out of the screw and extend the lifespan of both the bit and the screw. Made from TQ 60 steel. With color-coded stripes for distinguishing the head shape. 1/4 E 6.3 shank.