The Wera BiTorsion bits for Phillips screws with elastic 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. Tough viscous for universal use

For Phillips screws
BiTorsion zone to absorb peak loads
Considerable reduction in the risk of breakage, significant increase in service life
Ductile and tough for hard materials
1/4" hexagon drive (Wera connecting series 4)

Phillips screws Drive 1/4" hexagon, suitable for DIN ISO 1173-F 6.3 bit holders Design BiTorsion for long service life, extra-tough, for universal use. take it easy tool finder Output color coding (red = Phillips) and large stamp to enable the desired bit to be easily located.