7/16-20 national fine tap & fractional drill bit 25/64" combo pack. Fractional tap. Precision cut threads, accurately formed for consistent, exact threading. Heat treated and tempered for file hard threads, and longer, useful life. Designed for hand cutting applications.
4-40 national fine plug style machine screw tap and number drill bit #43 combo pack. Precision cut threads, accurately formed for consistent, exact threading. Heat treated and tempered for tile hard threads, and longer, useful life. Designed for hand cutting applications.
