Wera 840/4 Z HEX-PLUS Hex Screwdriver Bit 0.9mm 1/4" Hex 50mm Length

840/4 Z bits, 0.9 x 50 mmTough Wera bits for hexagonal socket screws, for universal use. Hex-Plus offers larger 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-F 6.3.