This Teng Tools tool set, model TMX098, contains 98 pieces and is supplied in a hard-wearing storage case with a retractable handle, metal pin hinges, and rubber feet. The set includes a 3" extension bar, 3/8"F x 1/2"M adaptor, 3/8"F x 1/4"M adaptor, 5" extension bar, bits coupler for 1/4" hex bits, flip reverse ratchet, and a magnetic bits driver (193mm), as well as a mini palm ratchet. The drive sizes included are 1/4", 3/8", and 1/2".