Koetsu Brand Groove Plane Aizoko:
Mizo Minami Sakuri Kanna - Groove plane is used for shaving the bottom of a groove or rabbet. The angled blade is good for cross-grain shaving. This plane
is also called Kushi Gata Sakuri Kanna. It looks like a comb-shape. Block length is 9 1/2", Laminated white steel in a Japanese white oak block.