Klein Tools 70591 Folding Hex Key Set, 9-Key, SAE SizesNo need to worry about lost hex keys with Klein Tools Folding Hex Key Set. This handy tool features 9 different size hex keys in a convenient folding tool that fits easily into your pocket or tool box. The hex ends are square-cut so they fit securely into hex sockets. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.EKLIND 20511 Steel Handle Fold-up Hex Key allen wrench - 5pc set SAE Inch Sizes 3/16-3/8EKLIND 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.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.