Patent ID: 8678714

Claim:
Milling tool formed for gash milling, comprising a tool body that defines a rotation axis and has a first end, an opposite second end, and a peripheral surface that extends around the rotation axis between the first end and the second end; a large number of separated seats that are arranged one after the other in the tool body along a succession line; and a corresponding large number of replaceable milling inserts each one of which comprises an under side, an opposite upper side that forms a chip surface, a circumferential edge side that connects the upper side and the under side, an insert axis that extends through the upper side and the under side, and at least one primary main cutting edge and a secondary main cutting edge, which converge to each other and are formed where the edge side meets the upper side, wherein each seat comprises a support surface for the receipt of the under side and an inner abutment surface for the receipt of an edge side of one of the milling inserts, each milling insert projecting from the tool body for cutting engagement with a gash of said workpiece, wherein the milling inserts comprise outer milling inserts, which project from the tool body by a first length from the rotation axis, and inner milling inserts, which project from the tool body by a second length from the rotation axis, wherein the first length is considerably greater than the second length, wherein the converging primary main cutting edge and secondary main cutting edge of any one inner milling insert are axially separated relative to the rotation axis by the succession line for the seat for that one inner milling insert, wherein said seats comprise outer seats, each one of which is formed for the receipt of one of the outer milling inserts, and inner seats, each one of which is formed for the receipt of one of the inner milling inserts, and wherein the inner abutment surface of outer seats are radially more distant from the rotation axis than the inner abutment surface of inner seats.