re: -

Hi Ron... Japanese coopering planes are fantastic. I've used one in the past. Alot nicer than western coopering planes IMO. Pulling is easier than pushing. There are a couple of different types:
 https://osakatools.com/products/convex-compass-plane-sori-dai-kanna-24mm

For me if I could get details I'd probably my own.

Cheers!
Rick