Eklind 92400 8 Piece Hex Key Series PSD Precision Screwdriver Set with Pouch, Sizes: 0.7 mm - 4 mm 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 PSD Precision Screwdrivers have larger handles and a soft overmold for greater comfort and ergonomics. Includes large spinner cap for precise control. Size permanently marked on spinner cap. Precision machined tip. Color coded BLUE for METRIC.