851/4 BTZ bits, PH 1 x 50 mm 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 " hexagon, suitable for holders as per DIN ISO 1173-F 6.3. 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) Application: 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.