EKLIND TOOL 10507 Metric Hex-L Key Set, 7-Piece 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. Made of chrome nickel alloy steel. Hex corners are sharp and clean. Comes in compact plastic holder. Includes: 1.5MM, 2MM, 2.5MM, 3MM, 4MM, 5MM, and 6MM. 7 piece set.