851/4 A bits High quality Wera bit for Phillips screws. It has a sharp-edged profile that ensures a dependable transfer of power between the bit and screw by breaking off the paint e.g. when screw profiles are covered in it. Extra-hard design: 1/4" hexagon, suitable for holders as per DIN ISO 1173-F 6.3. For Phillips screws
Particularly hard for semi-hard materials
Profiled version
1/4" hexagon drive (Wera connecting series 4)
Suitable for AEG, ARO, Atlas-Copco, Biax, Black & Decker, Bosch, Buckeye Tools etc. 851/4 A bits, PH 1 x 89 mm