This Crescent general purpose mechanic's tool set contains a carefully selected assortment of professional tools for industrial jobs. It includes durable, full polish Crestoloy® alloy steel ratchets, drive tools and sockets that are reliable and resist rust and wear. Also included in the CTK170MPN set are full polish combination wrenches, an adjustable wrench, pliers, bits, hex keys and screwdrivers. The heavy-duty blow-molded case has steel hinges, latches on top and sides and a designated spot for each tool. All tools in this set meet the new ANSI and ASME specifications and come with a full satisfaction guarantee. Crescent trusted by the trades to provide quality tools since 1907.