Patent ID: 7367254

Claim:
A cutter comprising: a base portion for supporting a workpiece; a holder supported on the base portion; a cutter blade portion adapted for supporting a circular saw blade that cuts the workpiece, the cutter blade portion being supported on the holder so as to be pivotally movable between an upper position and a lower position, the cutter blade portion being closer to the base portion in the lower position than in the upper position, the circular saw blade having a rotation axis and a blade edge in a circumferential direction of the circular saw blade, the blade edge having a width in a direction of the rotation axis, said width being bounded by two parallel planes; a laser generator, said laser generator including a light emitting portion for emitting a laser light beam plane, the laser generator being provided on the holder at a position higher than a surface of the base and lower than a predetermined position so that the laser light beam plane is formed between the lower edge of the blade and the base when the cutter blade portion is at the upper position; and means for moving the light emitting portion of the laser generator in a longitudinal direction of the rotation axis of the circular saw blade.