MADE IN AMERICA- High quality, Industrial Grade Professional Tools made in the U.S.A. Long Arm 13.88in, Short Arm 3.03in 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 FAST AND EFFICIENT- The EKLIND Ball-Hex keys work at up to a 30 degree angle for access to hard to reach socket-headed fasteners.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