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 20912 Steel Handle Fold-up Hex Key allen wrench - 9pc set SAE Inch Sizes.050-3/16 meets the most stringent requirements of professional mechanics, tradespeople, do-it-yourselfers and hobbyists.