Pass-Through Ratchet, Socket and extension system loosens and drive nuts on bolts of any length. Replaces standard deep sockets which are limited to bolts the length of the deep socket. Set includes 17 sockets: 3/8 in., 7/16 in., 1/2 in., 9/16 in., 5/8 in., 11/16 in., 3/4 in., 13/16 in., 7/8 in., 10, 11, 12, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm and 19 mm, 2 - Drive Adapters 1/4 in. and 3/8 in. to convert for use with standard 1/4 in. and 3/8 in. drive socket sets, 1-3 in. hole-through extension and 1 - gear ratchet. Vortex sockets integrate into the gear ratchet handle instead of attaching to a square drive, reducing overall height and increasing torque strength. The gear ratchet adapter allows for the use of standard sockets and drive tools and features a Quick Button Release. Vortex thin wall sockets have the same torque strength as an ordinary socket. Blow Molded Case for secure storage.