To remove a side cover by an easy operation while in a conventional way it takes a time and effort to remove this side cover from a stripping edge in order to give a facility of a saw blade change or the like when the stripping edge is arranged in a backside of the saw blade and the side cover covering both sides of the saw blade is supported by this stripping edge in a table saw in which a cutting material is placed on a table and a cutting work is performed.

The cutter is configured that when an operation lever 31 of a fitting apparatus is tilt-operated to the third operation position P3, a cover shaft 56 supporting side covers 55 and 55 is extracted from a support grooved portion 42, and the side covers can be removed from a top cover and the stripping edge 20.