Patent ID: 8701537

Claim:
A rotating saw blade cutting tool, comprising: a base body including at least one deformable clamping element movable from an open position to a fixing position and at least one bit seat in which an insert is positionable; at least one control element comprising a rotatable body; and said rotatable body being positioned in a recess of the base body, wherein the at least one control element is positionable to move the at least one deformable clamping element from the open position to the fixing position against the insert to hold the insert in the at least one bit seat in the fixing position, and the rotatable body is structured and arranged in the recess so as to have three discrete contact areas comprising two contact areas that are provided between a wall of the recess and the rotatable body and a third contact area that is provided between the rotatable body and an inwardly or outwardly curved cam surface of the at least one deformable clamping element such that the three discrete contact areas are each located at different locations with respect to a radial line extending from a rotational axis of the rotatable body, wherein the three contact areas are arranged in a common plane, wherein, in both the open position and the fixing position, a distance between a center axis of the rotatable body and a first contactable portion of the inwardly or outwardly curved cam surface is different than a distance between the center axis of the rotatable body and a second contactable portion of the inwardly or outwardly curved cam surface, said first and second contactable portions being circumferentially spaced from each other, and wherein the three contact areas between the rotatable body and the recess occur in both the open position and the fixing position.