Circular saw machine

Circular saw machine comprising a saw blade (1) and a drive shaft (2) to which the saw blade is removably and interchangeably mounted, and at least one rearward saw blade guide (4) and at least one forward saw blade guide (5) that contact two side surfaces of the saw blade (1), the saw blade guides (4, 5) respectively have at least one contact surface (6) to be abutted on the respective side surface of the saw blade (1), and for sawing, the drive shaft (2), with the saw blade thereon, is rotated in a drive housing arranged for back and forth movement in a rotation plane of the blade, the forward saw blade guide (5) is connected to the drive housing so that the forward saw blade guide is pivotable away from the saw blade (1);

• a radial distance between the contact surfaces (6) of the saw blade guides (4, 5) and the drive shaft (2) is respectively adjustable in predetermined defined positions for matching different diameter saw blades, at least one of the saw blade guides (4, 5) is installed on a mounting (12) that is pivotable in a direction parallel to the plane of the saw blade on the saw blade guide (4, 5), with the mounting (12) being fixable at a plurality of predetermined pivot angles, the forward saw blade guide (5) is pivotable away from the saw blade (1) by a hinge (8), a hinge pin located along a pivot axis of the hinge (8) being adjustable by an eccentric mounting in order to set a distance between the rearward and the forward saw blade guides (4, 5) for matching different thicknesses of the saw blade (1).