Patent ID: 8573707

Claim:
A tool assembly for mounting a cutting tool, the tool assembly comprising: a block comprising a holder portion having a front face, a rear face and a longitudinal bore extending therethrough from the front face to the rear face, the longitudinal bore disposed about a central longitudinal axis; a retainer sleeve removably received in the bore of the holder and disposed about the central longitudinal axis, the retainer sleeve defining a longitudinal slot that extends from an axial forward end to an axial rearward end of the retainer sleeve, the retainer sleeve further defining at least one retention groove adjacent the axial forward end thereof wherein the at least one retention groove is enclosed on all sides; and a washer disposed about the central longitudinal axis and removably attached to the retainer sleeve, the washer having a forward surface, a rearward surface and an interior surface that define a central opening, wherein the interior surface includes: a key extending inward into the central opening that is structured and arranged for cooperating with the longitudinal slot in the retainer sleeve; and at least one protrusion extending inward into the central opening that is structured and arranged for cooperating with the at least one retention groove in the retainer sleeve, wherein the cooperation of the at least one protrusion and the at least one retention groove secures the washer in position adjacent the axial forward end of the retainer sleeve and prevents longitudinal movement of the washer with respect to the retainer sleeve in both axial forward and axial rearward directions along the central longitudinal axis.