"Desinged for use on hex fasteners","Socket mirror polish chrome-vanadium finish that resists abrasion and corrosion","Bits are manufactured with S2 steel and finished with zinc phosphate coating for corrosion resistance","High-visibility markings include two black rings for easy ADV distinction","Includes sizes: 1/8\", 5/32\", 3/16\", 7/32\", 1/4\", 5/16\", 3/8\"","Packaged on a black nylon rail 3/8" DRIVE 7 PIECE LONG ADV HEX BALL SAE BIT SOCKET SET SBBXL7V | Matco Tools