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. With colour coding by tip (blue = hexagonal socket) and size stamping for easy identification of the required bit. 1/4" hexagonal, suitable for holding tools as per DIN ISO 1173-F 6.3.