Wera 840/1 ZBO Hex Pinned Security Bit Extra Tough 2.5mm 25mm Pack of 1

This Wera 840/1 ZBO bit is supplied in a 2.5mm hex size with a 25mm length, offering a slightly larger drive to tackle hexagon socket BO security screws that fall between the standard 2mm and 3mm options. It's a precise fit for applications where only the correct size will do — preventing cam-out and protecting both the bit and the fastener. The Hex-Plus profile increases the contact surface inside the screw head, significantly reducing the notching effect that leads to rounding and premature we