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. This Socket Rail Set features a Ball-End feature, which allows you to get into tight spaces with up to 25-degree working angle! Ball-end for easy fastener access, supporting up to 25 degree working angles Manufactured from heavy duty Chrome Vanadium Steel and conveniently supplied on a clip rail for easy storage 1/4" Square Drive - 100mm: H1.5, H2, H2.5, H3, H4, H4.5 3/8" Square Drive - 100mm: H5, H6, H8, H10, H12