Square drive socket set contains Ken-Grip® sockets for maximum performance and grip. Supplied in a robust carry case, each component is manufactured from chrome vanadium steel and chrome plated. Contains various metric sized sockets as well as socket accessories for a well rounded, comprehensive tool set. Grips nuts and bolts which are up to 95% rounded off. Will not damage new, worn or rusted nuts and bolts. Fits a wide range Metric, UNC, UNF, BSW, BSF and E-Torx® sizes for versatility of use. Unique Double-Knurl design improves grip when using. Manufactured from chrome vanadium steel for durability. Supplied in a robust plastic carry case for ease of transportation, storage and organization of your components and accessories. 30 piece set is comprehensive to ensure you have the right accessory or component to hand no matter the application. Fully chrome plated finish for easy clean and additional resistance against corrosion. Ken-Grip®: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,23, 24, 25, 26, 27, 30 and 32mm. Spark Plug Sockets: M10 and M14. Accessories: quick release ratchet handle, sliding T-handle, universal joint, 75, 125 and 250mm extension bars. Robust fitted case with security padlock hole and cushion grip handle.