170 Piece Mechanics tool set contains a carefully selected assortment of brand hand tools needed for most industrial, mechanical, and consumer applications. The set includes 1/4 inch, 3/8 inch, and 1/2 inch quick release ratcheting drives with a wide selection of standard and deep sockets in the most common and metric sizes. Included in the set are the following 3/8 inch drive tools: a 72 tooth quick release ratchet drive, 2 extensions, a 3/8 inch to 1/4 inch adapter, 2 spark plug sockets, 25 twelve point sockets and 10 six point deep sockets. It also includes the following 1/4 inch drive tools: a 72 tooth quick release ratchet drive, a 3 inch extension, 22 six point sockets. Additionally, there are 12 and metric combination wrenches, 2 pliers, 8 inch adjustable wrench, 4 screwdrivers, a magnetic bit driver with 44 driver bits, and 26 and metric hex keys. From the flawless chrome finish of its wrenches, ratchets, and sockets to the perfectly balanced and shaped dual-material handles of its screwdrivers, this 170-piece mechanics tool set offers an extraordinarily high level of quality. mechanics tools are made from chrome vanadium steel alloy, specially formulated and heat-treated for high strength and superior resistance to abrasion. Every part of every tool -- from the vapor-blasted screwdriver tips to the hardened ratchet gears and pawls -- is designed for extremely long life. The set contains all the tools needed for most industrial applications including 1/4", 3/8" and 1/2" quick-release ratchets, with a wide selection of standard and deep sockets in the most common