Circular planes are a common tool used in woodworking, metalworking, and other industrial processes. There are several synonyms for these planes, including round planes, disk planes, and rotary planes. These planes feature a circular blade or cutter that is rotated on an axis, allowing it to remove material evenly from a surface. Other similar tools include bullnose planes, which feature a circular blade mounted at the front of the plane, and compass planes, which use a circular blade that can be adjusted to create different radius curves. Choosing the right circular plane for a particular job depends on the desired outcome, the material being worked with, and the skill and experience of the craftsman.