Patent ID: 9700945
Date: 2017-07-11
CPC Classifications: B23B,Y10T

Claim:
1. A cutting tool comprising: a cutting insert having an arc-shaped shank and a cutting head which is arranged on a first end of the shank and comprises a cutting edge, wherein the shank comprises an upper locating face and a lower locating face, wherein the lower locating face follows a first radius of curvature for the arc-shaped shank and the upper locating face follows a second radius of curvature for the arc-shaped shank, wherein the first radius of curvature is larger than the second radius of curvature, wherein a first center point of the first radius of curvature and a second center point of the second radius of curvature are each disposed outside of a geometry of the shank, wherein the lower locating face extends over an angular range of more than 90°, and a holder having a rigid upper clamping jaw and a rigid lower clamping jaw which together define a slot-shaped, arc-shaped receptacle for receiving the cutting insert, wherein the cutting insert may be inserted into the holder at a front end of the receptacle, wherein the receptacle terminates within the holder at a back end, wherein the receptacle has an upper bearing surface which is arranged at the upper clamping jaw, wherein the upper bearing surface rests against the upper locating face of the cutting insert when the cutting insert is inserted into the holder, and wherein the receptacle has a lower bearing surface which is arranged at the lower clamping jaw, wherein the lower bearing surface rests against the lower locating face of the cutting insert when the cutting insert is inserted into the holder, and wherein the lower bearing surface extends over an angular range of more than 90°; wherein the receptacle of the holder extends over a larger angular range than the shank of the cutting insert, and wherein the shank of the cutting insert is held in the receptacle of the holder such that a second end of the shank opposite the first end is distanced from the back end of the receptacle.