Length 24.3cm x Width 4.2cm x Height 12.7cm
a- Length 24.3cm x Width 4.2cm x Height 11.2cm
b- Length 11.4cm x Width 3.1cm x Height 1.3cm
c- Length 17.0cm x Width 3.2cm x Height 0.4cm
A smoothing scrub plane comprised of three parts, a rectangular wooden body with a horn handle attached to the toe and an angled cutout through the middle of the body (a), a rectangular wooden wedge piece with two longer pieces of wood on either side (b), and a long rectangular iron that narrows to a wide blade at the bottom and is hollow in the middle in the shape of a key-hole(c). The wedge and the iron fit together inside of the body and the wedge holds the iron in place as the iron cuts the wood below. Stamped on the iron is "JAMES WALKER & COMPANY" with a symbol of a moose, and then "SHEFFIELD".
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 sole, a relatively narrow but thick blade, a very wide mouth, and a deeply curved edge (of about a 3 inch to 7 inch radius) to make a deep, gouging cut. A scrub plane is generally used in diagonal strokes across the face of a board, rather than parallel to the length of the board (along the grain) as with most other bench planes. In thicknessing or preparing rough stock, the scrub plane is usually followed by the jack plane, jointer plane, then smoothing plane. Its function in modern woodworking has been largely replaced by power tools such as the thickness planer. A scrub plane can still be useful for planing boards too wide to fit through a thickness planer.
