Patent attributes
An indexable milling insert has a trigon shape and includes a mounting hole placed centrally in the milling insert, an upper side and a lower side, which sides are parallel with each other and act as an alternating first support surface and second support surface. The milling insert is furthermore provided with major cutting edges, which are oriented perpendicularly to the axis of the mounting hole as well as arranged in such a way that a turning of the milling insert around the center of the mounting hole into an alternative cutting position alternatively a flipping of the milling insert into an alternative cutting position provides an identical position of the major cutting edges in relation to a workpiece. The major cutting edges of the milling insert are furthermore placed in the milling insert, when the same is tangentially mounted in a cutting body, so that the shortest distance of the major cutting edges to the axis of the hole in top view is smaller than the distance of a third support surface to the axis of the hole. A milling cutter tool having such a milling insert mounted is also disclosed.
