The Cooley Coronary Dilator with 2.0mm Shaft is a specialist surgical equipment used for dilating coronary arteries during heart surgery. This dilator has a 2.0mm shaft composed of malleable aluminum, which allows it to conform to the natural curve of blood arteries, resulting in effective and mild dilation. The instrument's entire length is 5 inches (12.5 cm), ensuring excellent control and precision throughout procedures. Cooley Coronary Dilator aluminum 2.0mm shaft