Features and Benefits: Manufactured from heat treated, chrome vanadium steel; High polish chrome finish resists against rust and corrosion; Size is laser marked on each socket for easy identification; Packaged on socket rail organizer; Includes sizes: 6mm to 13mm.; 8-piece 1/4 in. drive metric set includes deep sockets sized from 6 mm-13 mm. All sockets are 6-point. Manufactured with heat-treated chrome vanadium. Packaged on rail organizer.