840/1 BTZ bits, 5.5 x 25 mm The Wera BiTorsion bits for hexagon screws with elastic 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. Extra-hard design. 1/4" hexagonal, suitable for holders as per DIN ISO 1173-D 6.3. For socket head 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) Application: Hexagon socket screws Drive 1/4" hexagon, suitable for DIN ISO 1173-D 6.3 bit holders Design Hex-Plus, BiTorsion for long service life, extra-tough, for universal use. take it easy tool finder Output color coding (blue = hexagon) and large stamp to enable the desired bit to be easily located.