Jims piston ring groove cleaner

This tool is specially designed to clean up the compression ring slots. It will remove the carbon build-up easily. The tool includes two cleaning spurs with sizes 5/64", 3/32", 1/8", 5/32", 3/16", 1/4", 1.5mm, 1.75mm, 2mm. Can be used on all pistons with 2 3/4" to 5" (70 to 127mm) diameter.