KING's 50-piece mechanics tool set contains one (1) double-sided 1/4 x3/8in. drive stubby ratchet w/ comfort grip alsong with twenty (23) 1/4in. and 3/8in. drive metric and SAE sockets. (9) 1/4 DRIVE SAE SOCKETS: 5/32in. 3/16in. 7/32in. 1/4in. 9/32in. 5/16in. 11/32in.3/8in. 7/16in.; (9) 1/4 DRIVE METRIC: 4MM, 5MM, 6MM, 7MM, 8MM, 9MM, 10MM, 11MM, 12MM; (2) 3/8 DRIVE SAE: 1/2in. 9/16in.; (2) 3/8 DRIVE METRIC: 13MM,14MM; (1) SOCKET ADAPTER 3/8 MALE X 1/4 FEMALE. It also includes one (1) stubby magnetic bit driver and twenty (24) insert bits and adapter and one (1) stubby adjustable wrench with comfort grip. (24) 1INCH S2 DRIVE BITS: ADP, PH0, PH1, PH2, PH3, H2, H2.5, H3, H4, H5, H6, S0, S1, S2, S3, T15,T20, T25, T27, T30, SL1/8, SL5/32, SL3/16, SL1/4 . Ideal for work in tight and confined areas. Comes with carrying case for easy mobility and storage.