851/4 A bits, PH 0 x 50 x 3 mmHigh 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: hexagon, suitable for holders as per DIN ISO 1173-F 6.3.