A plane is a tool for shaving the surface of wood. In Japan, in the past, the surface was shaved with a spear-like tool with a bamboo leaf-shaped knife called Yariganna (spear plane) attached to the handle. It is thought that the rectangular plane (plane) that can be seen today was introduced around the middle of Muromachi. It is also known that Japanese planes are used by many foreign planes pushing and using them while they are pulled.

Planes are also carpenter tools of many kinds. In the case of a typical flat plane, depending on the finishing process, the tools are adjusted while adjusting the cutting stage, such as the demon rough plane, the rough plane, the uneven plane, the middle plane, the upper plane, and the finishing plane. Use differently. In addition, depending on the situation of the place to use, there are different planes with different functions such as flat planes, fixed planes, time planes, and chamnation planes (for details, please refer to the following various planes commentary).

The plane is made up of a large metal blade and a wooden stand. Stands may be made by carpenters themselves, but now they seem to be often made by specialized pedestal craftsmen. It seems that oak, which is a hardwood, is often used, but this depends on the use and user's preference.

The plane blade usually uses a two-piece blade with a holding blade to prevent the reverse side of the finishing surface. A good user can be finished neatly with a single blade, but a bad user is said to make a reverse even with two blades. In this way, a plane is a tool that requires considerable skill in maintaining the cutting edge and adjusting the plane stand.

Carpenters use the sharpness of the plane, which is directly connected to the finishing of the material and work efficiency. The fact that there are many plane blacksmiths among those who are called carpentry tools may have been born from such tensions between carpenters and blacksmiths.