Wera 851/1 BTH bits, PH 1 x 25 mm

Features

High quality bits for Phillips screws with 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. Extra-hard design, ¼" hexagon, suitable for holders as per DIN ISO 1173-D 6.3.

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