Abstract: Circular tool (10) for cutting rolls of paper and similar, the tool (10) including a central axial hole (11), two lateral surfaces (10a) and an outer cutting edge (12) defined by two chamfers or bevels (13a, 13b) inclined at respective angles “&agr;,&bgr;” with respect to the lateral surfaces (10a), one chamfer (13a) defining a cutting side of the tool (10) and the other chamfer (13b) defining a side not directly involved in the cutting action of the tool (10), the tool (10) being able to be associated by means of the central hole (11) with a rotation shaft, the lateral surfaces (10a) having a thickness “s” of between 2 and 4 mm and being parallel to each other, the surface defined by the chamfer (13b) not directly involved in the cutting action being covered with a protective layer (14) of material of great hardness.

Abstract: Circular tool (10) for cutting rolls of paper and similar, the tool (10) including a central axial hole (11), two lateral surfaces (10a) and an outer cutting edge (12) defined by two chamfers or bevels (13a, 13b) inclined at respective angles “&agr;,&bgr;” with respect to the lateral surfaces (10a), one chamfer (13a) defining a cutting side of the tool (10) and the other chamfer (13b) defining a side not directly involved in the cutting action of the tool (10), the tool (10) being able to be associated by means of the central hole (11) with a rotation shaft, the lateral surfaces (10a) having a thickness “s” of between 2 and 4 mm and being parallel to each other, the surface defined by the chamfer (13b) not directly involved in the cutting action being covered with a protective layer (14) of material of great hardness.