The Custor CTK02037K is a genuine 37-piece 1/4 inch drive socket set, meticulously crafted from high-quality Chrome Vanadium Steel for exceptional durability and performance. This comprehensive set includes 1/4" DR. 6PT Flank Sockets (4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14mm), 1/4" DR. 6PT Flank Deep Sockets (6, 7, 8, 9, 10, 11, 12, 13mm), and 1/4" DR. Bit Sockets (PH1, PH2, PZ1, PZ2, T10, T15, T20, T25, T27, T30, H3, H4, H5, H6). Essential accessories such as a quick release ratchet, universal joint, extension bars (2", 4"), sliding T-handle, and spinner handle are also included. All components are securely organized in a robust blow mold case, ensuring convenient storage and transport for professional and DIY applications.