Ideal for assembly and servicing of small precision mechanisms associated with electrical, electronic, ignition and refrigeration work, these BA sized 1/4in. square drive sockets are manufactured from chrome vanadium steel. The product's double knurl feature gives a high grip which is essential for a quick tool change when your hands are greasy/oily. The 12 point bi-hexagon side drive design will give a higher torque than normal sockets (some products are single hexagon only, see below). Each component is finished with a chrome plating, a mirror finish and aluminium-free construction to ensure non-sparking. The product also possesses a chamfered leading edge ensures easy fastener location. Features and Benefits 12 point bi-hexagonal side drive design provides a higher torque than standard hexagonal sockets Fully chrome plated for protection against corrosion Polished mirror finish repels dirt and grime making for an easier tool clean Aluminium free construction makes the sockets s