1/2" Square Drive: The most popular drive size used in the service and maintenance industries. This popularity is due to the strength and robust nature of 1/2" drive. All Kennedy Professional sockets have a knurl feature to give 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, grip worn nuts and will not round off existing nuts. Chamfered leading edge ensures easy fastener location. Features and Benefits • 12 point bi-hexagonal sockets provide higher torque than regular sockets • Will grip worn nuts and won't round off existing nuts • Manufactured from chrome vanadium steel making for a robust product • Supplied in a moulded plastic carry case with handle for ease of transportation • Polished finish repels dirt and grease keeping your tools cleaner longer Typical Applications • Automotive • Construction • DIY • Engineering • Plumbing • Electrical