The Sealey 3/8" Drive Colour Coded Hexagon Socket Bit Set is a professional-grade socket set designed for use with hex fasteners across automotive, engineering and general maintenance applications. Manufactured from forged Chrome Vanadium steel sockets paired with durable S2 steel hex bits, this set delivers the strength and longevity demanded by trade professionals. Each socket features heat treatment and chrome plating with a fully polished micro satin finish for corrosion resistance and smooth operation. The colour-coded rings enable rapid size identification when working at speed, whilst knurled rings provide secure grip even with oily fingersessential features for workshop and site environments. Covering the most frequently used metric sizes from 4mm through to 12mm, this comprehensive set arrives organised on a socket rail for convenient storage and transport. The combination of quality materials and thoughtful design features makes this socket bit set ideal for mechanics, eng