Draper-Expert-16482-Go-Through-Socket-Set-19-piece-Draper-Expert-16482-Expert-Quality-20mm-socket-set-manufactured-from-chrome-vanadium-steel-hardened-and-tempered-with-a-polished-finish-The-unique-hollow-socket-technology-of-the-Draper-Expert-Go-Through-ratchet-and-sockets-is-ideal-for-long-fixings-The-sockets-are-edge-driven-This-allows-a-fixing-to-pass-through-the-head-and-avoid-the-depth-restriction-of-conventional-sockets-and-ratchets-Packed-in-tough-plastic-storage-case-with