Premium bits for Phillips screws with a torsion zone into which kinetic energy is dissipated during peak loads. With softer BiTorsion zone to prevent the bit tip from twisting at high loads. This significantly increases the product life. Tough, for universal use. 1/4" hexagonal, suitable for holders as per DIN ISO 1173-D 6.3.

Brand Name	Wera
Manufacturer Model No	851/1 BTZ
Type	Screwdriver Bits
Item Id	21030146
Features and Benefits	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 1)