Eklind 10609 Metric 9pc Hex Key Set 1.5mm to 10mm - Long Made in U.S.A. High Quality, Industrial Grade, Professional Tools. Made with Eklind Alloy Steel. Heat Treated for optimum strength and ductility. Finished with Eklind Black Finish to resist rust. Color coded BLUE for METRIC. Plastic holder firmly retains each key in a size marked hole. Meets or exceeds all applicable standards and regulations set forth in ANSI, ASME, RoHS, REACH, CA prop 65 and Dodd-Frank Conflict Minerals legislation. Contains Hex L-Key sizes 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 6mm, 8mm, and 10mm Long arm metric set Produced from the highest quality Elkind Alloy Steel Provides maximum torque and prevents rounding out of the key or hex socket Comes in color-coded compact molded holder that firmly retains each key in designated holes