This Industrial set of sockets has been manufactured from hardened and tempered Chrome Vanadium Steel (CR-V). Fully polished, this socket set comes with 16 single hex (6 sided), two extension bars (200 and 100mm), a sliding T-Bar and 3/4” square drive flip reverse quick release ratchet handle. For use in automotive, construction and industrial sectors like garages (car and commercial), rail yards, bridge construction, building foundation and construction, aviation and aeronautical engineering etc etc. Specifications • 19, 21, 22, 23, 24, 26, 27, 29, 30, 32, 36, 38, 41, 46 and 50mm • Extension bars 100 and 200mm (4 and 8 inches) • Sliding T bar • 3/4” sq drive flip reverse quick release ratchet handle • Knurled grip • Chrome vanadium • highly polished • Heavy duty plastic case with strong latches