851/1 BDC bits Size:Default Title (1 x) 4 x 25

(1 x) 4 x 25 mm

Special surface treatment of the blades for high corrosion protection and an optimum fit in the screw head

Half-round

Suitable for both manual and power tool operations

Ratcheting direction change is achievable via a simple switchover ring (right

851/1 BDC bits Size:Default Title (1 x) 4 x 25851 1 BDC bits Wera 851 1 BDC BiTorsion Diamond Coated Long Service Life bit, for Phillips screws. Often bits break as they can't handle the peak stress put upon them, the tip breaks and damage is also often caused to the screw head. Wera designed the BiTorsion system to prevent premature wear and significantly increase the service life of the bit. The system uses a two stage cushioning process which allows smaller impacts to be absorbed by the bit