Product Description EKLIND TOOL COMPANY is America's leading manufacturer of high quality, industrial grade hex keys, made with pride in the U.S.A. since 1950. The EKLIND 20511 Steel Handle Fold-up Hex Key allen wrench - 5pc set SAE Inch Sizes 3/16-3/8 meets the most stringent requirements of professional mechanics, tradespeople, do-it-yourselfers and hobbyists. From the Manufacturer The Eklind 20511, Fold-Up Set #51 comes with 3/16-Inch, 7/32-Inch, 1/4-Inch, 5/16-Inch, and 3/8-Inch Hex Keys. The set of keys is housed in a one-Piece comfort grip handle designed to operate smoothly as well as hold the keys firmly in any desired work position.