Installed Height Micrometer

Mills Specialty Products invented and introduced the original Hite-Mike in 1976. The Hite-Mike has since become a standard and preferred method of valve spring installed height measurement around the world from drag racing to NASCAR.

The Hite-Mike installs on the valve and retainer assembly as if it were a valve spring and reads installed height dimensions directly. The expanding force of the tool simulates valve spring pressure for more accurate readings. It’s a real time saver!