Wera BiTorsion bits have special heat treated torsion zone that has a lower hardness than the shaft tip. The peak loads are cushioned preventing premature breakage and distinctly extend the service life.
Wera BiTorsion bits are recognisable through the letter B (for example, 851/1 BDC), their gold colour and green band.
• Longer service life with the Wera BiTorsion system
• Outstanding concentricity features
• Heat treated torsion zones
• Prevents premature breakage
• Diamond coating