Eklind 13609 Metric 9pc Ball 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. Eklind Ball-Hex Keys will drive a fastener at up to a 30 degree angle. 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 the Ball-Hex-L Key sizes 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, and 10mm Designed with a ball profile on the long arm which provides 360 Degree of rotation at up to a 35 Degree angle The burr-free short arm allows the user to apply maximum torque in required applications Set comes in a compact molded holder that firmly retains each key in designated holes Molded holder is color-coded in red, which makes it instantly identifiable as an Inch Set