Ideal for assembly and servicing of small precision mechanisms associated with electrical, electronic, ignition and refrigeration work, these 1/4in square drive sockets are available in a range of AF sizes. Each socket possesses a double knurl feature, a 12 point bi-hexagon side drive design that enables higher torque than normal sockets and an aluminium free, chrome plated mirror finish. All sockets are manufactured from chrome vanadium steel and have a chamfered leading edge ensures easy fastener location. Features and Benefits Aluminium free construction makes the sockets suitable for use in non-sparking applications 12 point bi-hexagon side drive design allows you to deliver a higher torque than standard single hexagon sockets Double knurl feature allows for a rapid component change even when hands are oily or greasy Highly polished, mirror finish repels dirt and grime ensuring an easy tool clean Chamfered leading edge ensures an easy fastener location Chrome plated finish p