A comprehensive collection of 1/4 inch drive tools, this set has every size from 5/32 to 9/16 inch and 5 to 14 millimeter, in both shallow and deep lengths. It also includes tools not found in most other sets: a universal joint, screwdriver bit adapter, and 6-inch extension. Each socket has a high-torque, 6-point design that grips flat sides of fasteners, not corners, preventing round off. Needing just 5 degrees of swing to operate, the smooth, finely geared, the 72-tooth ratchet isn?t limited by tight spaces. All tools are made from premium chrome vanadium steel and protected by a mirror chrome-plated finish.