The Craftsman 270-piece mechanic's tool set has what you need for most any job, from any project as complicated as spending the day under the hood to a task as simple as tightening bolts. This set offers an array of sizes and measures that will ensure that you always have what you need on hand. 3 quick-release ratchets in 1/4", 3/8" & 1/2" drives 147 sockets in both inch & metric measures and 6- & 12-point 6 extension bars 12 combination wrenches in standard & metric 1 Magnetic handle 61 screwdriver bits 40 hex keys Finish: Alloy steel Case included: Yes