Number of Hex Keys: 40. Drive Size: 1/4, 3/8 and 1/2 in. Socket Points: 6, 8 & 12. Drive Socket Depth: Deep and standard.You work hard to make sure everything works like it should and this Craftsman 320-piece mechanic's tool set helps you get the job done. From any project as complicated as spending the day under the hood to a task as simple as tightening bolts, you'll have the tools you need. Since no two jobs are the same, this set comes in an array of sizes and measurements, so you will always have what you need on hand. Includes quick-release ratchets in 1/4", 3/8" and 1/2 drives. 152 sockets (6-point, 8-point and 12-point) in both inch and metric sizes. 4 extension bars help extend your reach. 8 combination wrenches let you slip in where the ratchet won't go. Comes with a magnetic handle with 12 nut drivers in inch and metric sizes. 96 screwdriver bits give you quick power and versatility. Comes with 40 hex keys and 4 adapters. The item "Craftsman 320 Piece Mechanic's Tool Set INCHES & METRIC With 3 Drawer Case Box" is in sale since Saturday, January 23, 2021. This item is in the category "Home & Garden\Tools & Workshop Equipment\Hand Tools\Hand Tool Sets". The seller is "ssurya13" and is located in Fremont, California. This item can be shipped to United States.