We designed the crank adapter to be used with ATI tool kit #918999 & Proform tool kit 66514. Both of these kits do not have the proper thread size crank adapter for Honda/Acura/Nissan/Mazda engines.
The tool kit & Doryoku crank adapters are use for installing press-fit (interference-fit) style crank adapters such as ATI & Fluidampr.
Both tool kit & Doryoku crank adapter are required for proper install & removal without damaging crank, damper.
You will need to purchase an ATI or Proform tool kit and purchase the correct crank adapter for your engine. Doryoku crank adapter includes three 5/16"-18 bolts & washer. The ATI or Proform kit will not include them.
M14 = Honda B, D & first gen H series, Mazda BP
M16 = Honda K, H, F, J, C series, Nissan KA,