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 21172 Classic Steel Handle Fold-up Hex Key allen wrench - 7pc set Metric MM sizes 2-8 meets the most stringent requirements of professional mechanics, tradespeople, do-it-yourselfers and hobbyists.