The kwb torsion bits are particularly suitable for tough screwing tasks. 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 and protects the bits from premature breakage, thereby extending their service life. Made from TQ 60 steel. With color coding for distinguishing the head shape. 1/4 E 6.3 shank.