Craftsman 250-pc Mechanics Tool Set, #17154 36T Ratchets come in come in 1/4, 3/8 and 1/2 inch drive sizes Sockets come in 1/4, 3/8 and 1/2 inch drive sizes and deep and standard depth Ideal flexibility with multiple sizes to work in both small, tight spaces and large areas Alloy steel construction for guaranteed durability The set comes in a sturdy storage chest with a convenient lift-top lid