About Park Tool Socket & Bit Set (SBS-1.2)The SBS-1.2 is a shop quality set of sockets, hex bits and Torx® compatible bits, selected specifically for common bike repair needs. Ideal for use with Park Tool Torque Wrenches, the SBS-1.2 3/8" drive bits and sockets are made from tough, chrome vanadium steel for lasting durability. Features 3, 4, 5, 6, and 8mm hex bits Long reach 5, 6 and 10mm hex bits Long reach T25, T30 and T40 Torx® compatible bits 8, 9, 10, 13, 14, 15mm and 1" sockets (The 1" socket fits various Park Tool Freewheel, Cassette Lockring, and Bottom Bracket tools) All sockets and bits are 3/8" drive About Park ToolPark Tool are the world's largest bicycle tool manufacturer. Located in St. Paul Minnesota they have been designing and manufacturing bicycle specific tools since 1963. Their dedication to quality and innovation have gained them the reputation for producing the best bicycle tools in the world.