A chamfer is a bevel

Bevel

A beveled edge refers to an edge of a structure that is not perpendicular to the faces of the piece. The words bevel and chamfer overlap in usage; in general usage they are often interchanged, while in technical usage they may sometimes be differentiated as shown in the image at right.-Cutting...

ed edge connecting two surfaces. If the surfaces are at right angles, the chamfer will typically be symmetrical at 45 degrees. A fillet

Fillet (mechanics)

In mechanical engineering, a fillet is a concave easing of an interior corner of a part design. A rounding of an exterior corner is called a "round" or a "chamfer".-Applications:...

 is the rounding off of an interior corner. A rounding of an exterior corner is called a "round" or a "radius".

"Chamfer" is a term commonly used in mechanical and manufacturing engineering. Special tools such as chamfer mills and chamfer plane

Chamfer plane

In woodworking, a chamfer plane is a specialised plane used for making bevelled edges - that is, chamfers.-Further reading:*http://www.frontier.iarc.uaf.edu:8080/~cswingle/woodworking/jigs.phtml...

s are available.