Expert Quality, manufactured from chrome vanadium steel hardened and tempered with a micro satin finish. Each socket has a knurled ring for extra grip. Supplied on a metal socket rail for secure storage. Expert Quality Contents: 1 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16" 7/18", 15/16", 1", 1.1/16" and 1.1/8" Supplied on a metal socket rail for secure storage Manufactured from chrome vanadium steel hardened, tempered and satin chrome plated for corrosion protection Each socket has a knurled ring for extra grip Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications |