Patent ID: 7364502

Claim:
A cutting wheel, comprising: a disk-shaped abrasive body ( 2 ) having two opposite faces ( 3 ) and having an extension of non-uniform thickness; an aperture ( 4 ) at a center of the body and configured for fitting the body to a spindle; plural raised ribbed profiles associated with each one of the faces, the profiles molded as one piece with the face, in plan view each profile being a zigzag shape extending in an essentially radial direction from the center of face, each profile having a substantially constant thickness of less than 0.001 meter, the profiles arranged in one of a succession i) with a substantially constant angular pitch, and ii) in symmetric sets; a plurality of spaces configured for removing chips formed during cutting, the spaces located between the profiles defined by each face, the body having a diameter of 0.05 meter to 0.35 meter and a thickness up to 1/60 of the diameter; and an abrasive cutting material of non-uniform density distribution covering the body and the profiles, areas having a higher density of cutting material and hardness being more effective for cutting soft materials and areas having a lower density of cutting material being more effective for cutting harder materials.