Slim-Profile Mini Ratchet Set The Klein Tools' Slim-Profile Mini Ratchet Set is the perfect solution for fastening in small, tight spaces. The 72-tooth, low-profile gear-head only needs 5° of sweep, allowing professionals to fasten in spots other drivers just won't fit. Ratchet is made of high-strength Chromium-Vanadium steel, which increases torque and the life of the tool. The handle is designed with a finger loop for control and convenience. Not only does the set include a bit holder with assorted driver bits and a socket adapter, but the 1/4" dual-drive head has integrated 5/16" and 1/4" nut drivers.