Patent ID: 7396196

Claim:
A tool for cutting machinery, comprising: a replaceable cutting element having a supporting component with first converging contact surfaces and with a second contact surface on said supporting component, and having a machining component; a holder having a first end with a fastening shank and a second end with a seat receiving said supporting component; a fastening component for fastening said supporting component in said seat, said fastening component including a support area and an adjustment area relatively movable toward and away from one another for fastening or replacing said cutting element; slots in said seat extending in a direction of said fastening shank to form said support area and said adjustment area and to allow elastic relative movement therebetween, one side of said slots communicating with an exterior; support surfaces on said support area converging toward one another and engageable with said first contact surfaces, said support surfaces and said first contact surfaces being correspondingly convergent; an adjustment surface on said adjustment area extending transversely to said support surfaces and engageable with said second contact surface; and a fastening sleeve having internal threading screwed on external threading on said holder and having a clamping surface narrowing and converging toward said machining component, said external threading communicating with said slot, said clamping surface interacting with a corresponding narrowing circumferential surface of said seat through which said slots extend to move said support area and said adjustment area toward one another to clamp said supporting component therebetween.