Wera 851/4 BDC bits (05059530001)

Application: Phillips screws Drive: 1/4" hexagon, suitable for DIN ISO 1173-F 6.3 bit holders Design: BiTorsion for long service life, diamond-coated for secure screw fit. Take it easy tool finder: Output colour coding (red = Phillips) and large stamp to enable the desired bit to be easily located.

BiTorsion bits for Phillips screws with tiny diamond particles on the bit tip. This ensures a secure fit of the bit in the screw, reduces the contact pressure required and lowers the risk of slipping. Comes with Torsion zone - where kinetic energy is diverted from peak loads - and softer BiTorsion zone to prevent the bit tip from twisting under peak loads. This greatly extends the product service life; 1/4" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.