MADE IN AMERICA- High quality, Industrial Grade Professional Tools made in the U.S.A. COMPLETE METRIC SET contains all common, popular MM Sizes: 1.5, 2, 2.5, 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 IDENTIFY YOUR TOOLS- Metric sizes are color coded in blue so you can reach for the correct tool quickly KEEP YOUR KEYS ORGANIZED- A plastic holder firmly holds each key in a sized-marked hole so you always have the size you need at-hand 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