An elongated tool holder includes a mass housing portion having a housing peripheral surface, an outer sleeve having a sleeve hole wall surface, and an anti-vibration arrangement. An elongated groove is formed in one of the housing peripheral surface and the sleeve hole wall surface. In an assembled state of the tool holder, the groove, which is located at a common interface of the housing peripheral surface and the sleeve hole wall surface, forms a groove coolant channel. The groove coolant channel forms part of an overall tool holder coolant channel which is spaced apart from the anti-vibration arrangement, and thus isolates the coolant from the anti-vibration arrangement. A cutting tool incorporates the tool holder.

A deburring tool includes a body including a cylinder chamber having a tool holder holding hole, and an anti-rotation body holding hole; a tool holder having an anti-rotation groove and disposed in the cylinder chamber to reciprocate in the cylinder chamber; a first elastic body disposed inside the cylinder chamber to urge the tool holder toward a distal end; a cover disposed outside the body to reciprocate between a detaching position and a processing position, the cover including, a pressing surface that covers the anti-rotation body holding hole at the processing position, and a relief portion; and an anti-rotation body accommodated in the relief portion when the cover is positioned at the detaching position and the tool holder is pulled from the tool holder holding hole.

A deburring tool includes a body including a cylinder chamber having a tool holder holding hole, and an anti-rotation body holding hole; a tool holder having an anti-rotation groove and disposed in the cylinder chamber to reciprocate in the cylinder chamber; a first elastic body disposed inside the cylinder chamber to urge the tool holder toward a distal end; a cover disposed outside the body to reciprocate between a detaching position and a processing position, the cover including, a pressing surface that covers the anti-rotation body holding hole at the processing position, and a relief portion; and an anti-rotation body accommodated in the relief portion when the cover is positioned at the detaching position and the tool holder is pulled from the tool holder holding hole.

The invention relates to a machine tool (1) comprising a clamping holder (10) which extends along a longitudinal axis (3) and a cutting element (20) that can be inserted into an open tool-side recess (40), which passes through the clamping holder (10), transversely to the longitudinal axis (3). The machine tool (1) has a stop (30) which is secured in the recess (40) and against which the cutting element (20) rests in the direction transverse to the longitudinal axis (3).

A tool holder for a cutting insert is proposed, the tool holder being configured to make it possible to easily mount and separate only an insert that is worn during cutting or needs to be replaced for various types of machining, make it possible to easily replace a cutting insert when replacing the cutting insert, and have a coupling structure that enables replacement of even a cutting body on which a cutting insert is mounted.

A tool holder for a cutting insert is proposed, the tool holder being configured to make it possible to easily mount and separate only an insert that is worn during cutting or needs to be replaced for various types of machining, make it possible to easily replace a cutting insert when replacing the cutting insert, and have a coupling structure that enables replacement of even a cutting body on which a cutting insert is mounted.

An elongated tool holder includes a mass housing portion having a housing peripheral surface, an outer sleeve having a sleeve hole wall surface, and an anti-vibration arrangement. An elongated groove is formed in one of the housing peripheral surface and the sleeve hole wall surface. In an assembled state of the tool holder, the groove, which is located at a common interface of the housing peripheral surface and the sleeve hole wall surface, forms a groove coolant channel. The groove coolant channel forms part of an overall tool holder coolant channel which is spaced apart from the anti-vibration arrangement, and thus isolates the coolant from the anti-vibration arrangement. A cutting tool incorporates the tool holder.

A cutting tool includes a cutting insert resiliently clamped in an insert holder. The insert holder has a holder longitudinal axis defining opposite forward to rearward directions, and a transversely oriented insert receiving pocket having a pocket longitudinal axis and a pocket front opening. The insert holder includes a forwardly located insert mounting portion that includes upper and lower jaws which together define the insert receiving pocket. The insert receiving pocket at the lower jaw includes a pocket lower clamping surface. The insert receiving pocket at the upper jaw includes a pocket upper clamping surface which faces mutually towards the pocket lower clamping surface. The insert receiving pocket at one of the upper and lower jaws includes a pocket stopper surface facing generally towards the pocket front opening. The upper jaw includes an outer flexibility groove recessed in the holder peripheral surface.

A cutting tool includes a two-way indexable cutting insert clamped in a transversely oriented insert receiving pocket of an insert holder. The insert holder includes a forwardly located insert mounting portion that includes upper and lower jaws which together define the insert receiving pocket having a pocket front opening. The lower jaw includes a pocket lower clamping surface. The upper jaw includes a pocket upper clamping surface which faces mutually towards the pocket lower clamping surface and a pocket stopper surface facing generally towards the pocket front opening. The pocket stopper surface is closer to the pocket lower clamping surface and further from the pocket front opening, than the pocket upper clamping surface. The pocket stopper surface is further from the pocket rear opening than the pocket lower clamping surface.

A cutting tool includes a cutting insert resiliently clamped in an insert holder. The insert holder has a holder longitudinal axis defining opposite forward to rearward directions, and a transversely oriented insert receiving pocket having a pocket longitudinal axis and a pocket front opening. The insert holder includes a forwardly located insert mounting portion that includes upper and lower jaws which together define the insert receiving pocket. The insert receiving pocket at the lower jaw includes a pocket lower clamping surface. The insert receiving pocket at the upper jaw includes a pocket upper clamping surface which faces mutually towards the pocket lower clamping surface. The insert receiving pocket at one of the upper and lower jaws includes a pocket stopper surface facing generally towards the pocket front opening. The upper jaw includes an outer flexibility groove recessed in the holder peripheral surface.