The Britool 3/8in Drive 22 piece metric bi-hex socket set is supplied in a case which also converts into a modular storage system for use in roller cabinets. Consisting of:

17 x 3/8in Bi-Hex Sockets: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22 & 24mm.
2 x 3/8in Extensions: 75 & 125mm .
1 x 3/8in Bit Holder 1/4in.
1 x 3/8in Universal Joint.
1 x 3/8in Reversible Ratchet.