Wera 840/1 Z HEX-PLUS SW Bit - 8 x 25mm. Tough Wera bits for hexagonal socket screws for universal use. Hex-Plus offers lager contact surfaces in the screw head. The notch effect is reduced to a minimum and the destruction of the screw is nearly eliminated. 1/4" hexagonal suitable for holders as per DIN ISO 1173-D 6.3.
Hex-Plus allows socket head screws to live longer
Ductile and tough for hard materials
1/4" hexagon drive (Wera connecting series 1)