851/1 TH bits
Wera 851/1 TH Hard Torsion Bit, for Phillips screws.
TZ-Bits are hard bits with a torsion zone. Torsion bits absorb the peak torque loads in the torsion zone, this prevents premature wear and enhances the service life of the bit.
This hard torsion bit is great for use with semi-hard materials.
1/4" Hexagon drive makes it suitable for DIN ISO 1173-D 6, 3 bit holders.