Insert cutter

An inserted tooth milling cutter comprising:

• a cutter body of a generally circular cross-section having an axis of rotation therethrough;
• and
• first and second cutter inserts of an identical shape releasably mounted on a periphery of said cutter body in circumferentially spaced relation to each other, each insert having a first main cutting edge indexed in a peripheral cutting position, an auxiliary cutting edge indexed in an end cutting position and a second main cutting edge extending radially inwardly of said body from said indexed auxiliary cutting edge;
• the second main cutting edge of said first insert being located on a first reference plane disposed parallel to the axis of said body and spaced circumferentially of said body from one of partitioning radial lines dividing the periphery of said body into equal parts, the second main cutting edge of said second insert being located on a second reference plane disposed parallel to the axis of said body and spaced circumferentially of said body from a reference line which is inclined circumferentially of said body from another partitioning line;
• said inserts being disposed so that said indexed main cutting edge of said first insert is provided with axial and radial rake angles different from axial and radial rake angles of the indexed main cutting edge of said second insert, and that said auxiliary cutting edges of said inserts are disposed in a common plane perpendicular to said axis of said body.