The Kincrome Socket Rail Set Range is ideal for any application where a specific bit is required. These sets are complete with a rail for better organisation around the workshop. Designed with everyday trade use in mind the Kincrome Socket Rail Sets are perfect for any trade professional. Manufactured from heavy duty Chrome Vanadium Steel and conveniently supplied on a clip rail for easy storage, Socket Drive, Chrome Vanadium Steel and Driving Bit Silicone Alloy Steel (S2)