Chrome Vanadium steel spline sockets, hardened Chrome Vanadium steel spline sockets, hardened knurled ring for corrosion resistance and extra grip - even with greasy fingers. All sockets are equivalent to Metric hex and bi-hex sockets with many being also fits a variety of other fasteners: 12 point (triple square), Torx, 6 point, square sockets and damaged fasteners. Contents: Spline Socket 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 24, 27, 30, 32mm Extension Bar 50mm, 125mm, 250mm Sliding T-Head 3/8"(F)x1/2"(M) 1/2" Flexible Handle 1/2” Sg Drive Single Pawl Pear Head Flip Reverse Ratchet Wrench with 48 Teeth 1/2" Sg Drive Universal Joint