High quality bits with Torsion zone: where kinetic energy is diverted from peak loads. This greatly extends the product service life. Come with rough ribs (anti cam-out feature, ACR). Tough viscous, for universal use; 1/4" hexagon, suitable for holders as per DIN ISO 1173-D 6.3.
For Phillips screws
Ductile and tough for hard materials
Torsion design against premature wear
ACR (anti cam-out feature) to prevent any slipping out of the screw head
1/4" hexagon drive (Wera connecting series 1)