The Sealey 9 Piece 3/8" Drive Hex Socket Bit Set combines forged Chrome Vanadium steel sockets with hardened S2 steel hex bits for reliable hex fastener work. This professional socket set is designed for mechanics, automotive technicians and maintenance engineers who regularly work with hex bolts and fixings across a comprehensive range of sizes. The sockets feature heat treatment and a fully polished chrome finish that resists corrosion whilst providing easy cleaning. Knurled rings machined into each socket body improve grip control when working with oily or greasy hands, maintaining positive control during fastener removal and installation. The comprehensive size range from 4mm through to 12mm covers the majority of hex fastener applications found in automotive, machinery and general mechanical work. Each socket is supplied in a practical EVA storage tray that keeps the set organised within tool drawers or mobile toolboxes. The foam tray allows quick size identification and ensures s