The Craftsman Mechanics Tool Set, featuring a comprehensive 140-piece inch/metric selection, is a perfect addition to any tool box. This set includes a large diversity of tools including ratchets, sockets, combination wrenches, extension bars, nut drivers, hex keys, and screwdrivers in both inch and metric sizes. This allows for broad utility, covering a wide range of home and auto repair tasks. The ratchets feature Craftsman's proprietary 72-tooth ratcheting mechanism, offering a 5-degree arc swing for improved access in tight spots. The sockets, made from durable alloy steel with a chrome finish, are easy to clean and corrosion-resistant. They're marked with highly visible laser etched size markings for quick, easy identification. All these tools are neatly packed in a sturdy, compact, molded plastic case. This ensures secure storage, easy carriage, and quick organization of your tool set. The case makes this set a great option for mobile mechanics and DIY enthusiasts. Craftsman assures the reliability of their product with a full lifetime warranty which covers any defects due to materials or workmanship. This Craftsman 140-pc Mechanics Tool set stands as a testament to Craftsman's reputation for quality, durability, and versatility.