The Wera 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

For Phillips screws
BiTorsion zone to absorb peak loads
Considerable reduction in the risk of breakage, significant increase in service life
Diamond coating for a secure fit in the screw, literally bites into the screw head to prevent cam-out
1/4" hexagon

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 color coding (red = Phillips) and large stamp to enable the desired bit to be easily located.