The 40-Piece Ratchet and Socket Set is ideal for any tool box. The set is triple chrome plated and made of drop forged steel. The set has both a metric and SAE set that are rust resistant. The set includes: 3/8-Inch Drive 8-Inch Reversible Ratchet Handle, 3/8-Inch Drive 3-Inch Extension Bar, Spin Disk, 1/4-Inch (M) by 3/8-Inch (F) Adapter, (14) 1/4-Inch Drive Sockets (6 Point): 5/32-Inch, 3/16-Inch, 7/32-Inch, 1/4-Inch, 9/32-Inch, 5/16-Inch, 11/32-Inch, 3/8-Inch, 13/32-Inch, 7/16-Inch, 15/32-Inch, 1/2-Inch, 17/32-Inch, 9/16-Inch, (3) 1/4-Inch Drive Sockets (8 Point): 1/4-Inch, 5/16-Inch, 3/8-Inch, (14) 1/4-Inch Drive Sockets (6 Point): 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, 10, 11, 12, 13mm, (2) 3/8-Inch Drive Sockets (6 Point): 5/8-Inch, 11/16-Inch, (2) 3/8-Inch Drive Sockets (6 Point): 14, 15mm. Comes packed in a blow molded storage and carrying case.