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. What's Included: 3/16 inch, 7/32 inch, 1/4 inch, 5/16 inch, 3/8 inchMADE IN AMERICA- High quality, Industrial Grade Professional Tools made in the U.S.A.Contains INCH Sizes: 3/16, 7/32, 1/4 , 5/16, & 3/8EKLIND hex keys (allen wrenches) are used to drive internal hexagon socket (allen head) fastenersOPTIMUM STRENGTH- These EKLIND tools are made with EKLIND Alloy Steel that is heat treated, quenched and tempered for optimum strength, torque and ductility for safety and coated with a rust resistant finishALWAYS HAVE THE SIZE YOU NEED- This set of popular sizes is held together in one convenient handle and can fold out to a right angle for maximum leverage or out straight for a screwdriver styleEKLIND CLASSIC FOLD-UP SETS- Made of strong steel and are compact to fit easily in your pocketMEETS OR EXCEEDS ALL APPLICABLE STANDARDS- EKLIND tools meet or go beyond the standard regulations set forth in ANSI, ASME, RoHS, REACH, CA Prop 65 and Dodd-Frank Conflict Minerals Legislation