"LASTING STRENGTH AND DURABILITY. Manufactured with S2 steel and sockets with mirror polish finished Chrome-Vanadium steel that resists abrasion and corrosion","EASY IDENTIFICATION. Stamped markings for easy size, part number, and ADV identification","MASTER BIT SOCKET SET. Includes an optimal assortment of TORX®, Hex, and inverted TORX® bits in various sizes","STAY ORGANIZED. Packaged in a durable blow molded case to keep bit socket set organized","LIFETIME WARRANTY. Sockets are guaranteed for a lifetime of use 75 PIECE 1/4", 3/8", AND 1/2" DRIVE ADV MASTER HEX AND TORX® BIT SOCKET SET SBS75VA | Matco Tools