MADE IN AMERICA- High quality, Industrial Grade Professional Tools made in the U.S.A Contains MM Sizes: 3, 4, 5, 6, 8, & 10 EKLIND hex keys (allen wrenches) are used to drive internal hexagon socket (allen head) fasteners OPTIMUM 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 finish ALWAYS 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 style EKLIND ERGO-FOLD- Fold-up sets that have an ergonomic hard plastic shell that is stronger than steel and has a soft plastic cushion grip for comfort, slip resistance and safety IDENTIFY YOUR TOOLS- Metric sizes are color coded in blue so you can reach for the correct tool quickly MEETS 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