Patent ID: 7908946

Claim:
A tool for machining a workpiece, comprising: a blade with a blade having a cutting angle smaller than 10°; and a crystalline diamond coating provided at least in the region of the blade, wherein the tool is characterized by parameters determined as a function of specific cutting force components by means of the equation [ F x ⁡ ( θ ) F y ⁡ ( θ ) F z ⁡ ( θ ) ] = J ⁡ ( θ ) ⁡ [ K _ ct ⁡ ( θ ) K _ cr ⁡ ( θ ) K _ cz ⁡ ( θ ) K _ et ⁡ ( θ ) K _ er ⁡ ( θ ) K _ ez ⁡ ( θ ) ] whereby K ct , K cr , K cz , K et , K er , K er , K ez are mean specific cutting forces.