From the Manufacturer
The 77 pc set contains all the sockets needed for mechanical repairs. Tools are heat treated and chrome plated to resist corrosion and meet or exceed critical ANSI standards. Includes drive metric sockets, drive SAE sockets, ratcheting bit driver, drive ratcheting socket driver, drive SAE deep well sockets, drive extension bars, universal joint, drive adapter, bits. Each tool is tested against industry standards for hardness, torque, finish and usability and should last a lifetime under normal use. Tools are held securely in a sturdy blow molded case. Contents include: Eleven 1/4" drive metric sockets, eleven 1/4" SAE sockets, eight 3/8" drive SAE sockets, eight 3/8" drive metric sockets, ratcheting bit driver, 1/4" drive ratcheting socket driver, 3/8" drive ratcheting socket driver, five 3/8" SAE deep wall sockets, six 1/4" drive deep well sockets, 3/8" drive 3" extension bar, 3/8" drive 6" extension bar, 1/4" drive 4" extension bar, 3/8" universal joint, 3/8" drive 1/4" adapter, twenty 1" bits.