PURPOSE: To provide a metal saw having an edge part having a special shape to be mainly used to cut metal.

CONSTITUTION: In a metal saw 10, an optional edge part 12 of the metal saw 10 is specified as a reference edge part 12o every other piece. A one side edge tip part of the metal saw 10 extending over this reference edge part 12o, an edge back part 16 of a rotational directional front edge part 12 of the reference edge part 12o and an edge bottom part 17 of a rotational directional rear edge part 12n of the reference edge part 12o, is chamfered by being alternately arranged on both side surfaces in the outer peripheral direction from radial directional inside by leaving a flat part L, and a chamfering part is extended up to a dimension H larger than a height (h) of an edge bottom (a groove) part 17 between the edge parts.