The 12-piece 3/8 inch drive Imperial Ratchet and Socket Set is suitable for fastening applications. Set includes one 3 to 8 inch drive Roto ratchet, 3 to 8 inch deep well socket, 5 to 16 inch deep well socket, 7 to 16 inch deep well socket, 1 to 2 inch deep well socket, 9 to 16 inch deep well socket, 5 to 8 inch deep well socket, 11 to 16 inch deep well socket, 3 to 4 inch deep well socket, 6 inch extension, 3 to 8 inch to 1 to 4 inch drive adaptor, 3 to 8 inch Hex adaptor and carry case. The soft-sided carrying case helps to keep sockets organized. The parallel flat design supports wrench compatibility and deter rolling. Stamped socket sizes offer visibility for easy identification. Pivoting head can be used as a ratchet, a nut driver or any angle in between.