The Wera Bit-Check BiTorsion Diamond Coated Set contains 7 Pozi BiTorsion Diamond Coated Bits (BDC) which significantly extends service life and prevent cam-out. Microscopic diamond particles literally 'bite' into screwheads, preventing slips. The two unique Torsion zones, one in the bit and one in the holder, work together to absorb peak loads placed on the bit, extending bit service life.
Diamond bits are also hardened to a higher degree than standard bits, extending life further.Unique Rapidaptor bit holder locking system, for quick and easy one-hand bit change, standard 1/4in hexagon drive.
1 x 1/4in 897/4 R Rapidaptor BiTorsion Universal Bit Holder 75mm.