The Crescent 229 piece 1/4", 3/8", 1/2" Drive SAE/Metric Mechanics Hand Tool Set contains a carefully selected assortment of hand tools needed for most industrial, mechanical, and consumer applications. The set includes (3) 72-tooth quick release ratchets, allowing for rapid socket exchanges, a rachet gear that turns fasteners with a precision 5° swing arc and teardrop low profile head for improved access. Sockets in this set include Metric and SAE sizes all in 6-point style, covering the full range of most common fasteners in shallow and deep socket sizes. Access even more fasteners with the range of bit sockets included in the set covering Torx & hex common sizes and a full range of hex keys coming in long arm and short arm styles to provide access to more hard-to-reach fasteners. Comes packed in a heavy duty durable blow molded case, providing organization and protection for the set in even the most extreme settings.