The 4P valve spring micrometer is used between the seat base in the head and the retainer to get a quick and accurate measurement of your valve spring installed height. This tool is sized so that it can be used in a variety of applications including the tight constraints of Honda B, H, and K series engines, as well as most overhead cam engines. These high quality tools have a fine thread pitch for great accuracy and are easy to use with convenient gripping surfaces.
Measures 1.300" to 1.700"
Outside diameter or base of micrometer 1.160
Retainer side inside diameter .920
PURPLE ONLY. Black is discontinued due to everyone buying purple.
MADE IN THE USA