Scrub plane

The scrub plane is a type of plane used to remove large amounts of wood from the surface of lumber, such as when eliminating cup or twist in the first stages of preparing rough stock, or when reducing the thickness of a board significantly. Scrub planes generally have a short soles, a relatively narrow but thick blade, a very wide mouth, and a deeply curved edge (of about a 3 inch radius) to make a deep, gouging cut.