Socket wrench set with Superlock sockets, ratchet shank and extension Superlock is made of Chrome vanadium industrial quality steel Sandblasted surface makes it oil repellent Super lock geomitrin is perfect for work where the bolt / nut is worn or damaged The sleeve has no contact with the corner of the bolt / nut The sleeve's rounded corners mean that it does not lock under high load Super lock sleeve also fits Tum dimensions. Supplied in a robust metal box Contents: 17 pcs. Sleeves Superlock: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24, 27, 30, 32, 34 mm 1 pc. Ergonomic ratchet handle with ejector - 72 cogs 2 pcs. Extension wobbler - 125, 250 mm 1 pc. T-handle - 250 mm 1 pc. Joint knot - 75 mm 1 pc. Ergonomic handle - 350 mm Superlock Industrial grade chrome vanadium steel with a polished oil repellent surface. Superlock sleeves have a design that makes them suitable even for worn and slightly damaged bolt/nut. The sleeve does not contact the corners of the bolt/nut and the internal construction of the sleeve ensures that the sleeve does not lock on the bolt/nut under very high loads. Superlock can also be used for inch dimensions.