Milling tool which is suitable, in particular, for producing a cyclo-palloid toothing. The milling tool has a holder and multiple first cutting plates which are fastened to the holder. The holder comprises a clamping portion in the region of its rear end for clamping the holder and a holder head, which projects radially compared to the clamping portion in the region of its front end and on which multiple first cutting plate receptacles, which are arranged distributed in the circumferential direction, are provided. The first cutting plates are fastened in the first cutting plate receptacles, and project radially outward beyond the holder head at least in regions, wherein the radially outermost points of the first cutting plates lie in each case on a common circle, the center point of which lies on the center axis of the holder. The first cutting plates are arranged at an angle to an orthogonal plane which is aligned orthogonally to the center axis of the holder. Multiple first partly conical surfaces, which lie on a common, imaginary first envelope cone, the imaginary tip of which lies on the center axis of the holder and the surface line of which encloses a first angle with an orthogonal plane aligned orthogonally to the center axis of the holder, are provided on a top side of the holder head facing the clamping portion. Multiple second partly conical surfaces, which lie on a common, imaginary second envelope cone, the imaginary tip of which lies on the center axis of the holder and the surface line of which encloses a second angle with the orthogonal plane, are provided on an end side of the holder head which is remote from the clamping portion and is situated opposite the top side.

A cutting insert which is excellent both in manufacturing performances and dimensional precision and forms a pair with a tool body and a gear cutter including the cutting insert are provided. A cutting insert has a first face which is a rake face, a second face, a peripheral side face, and a mounting hole. On a ridge line where the first face and the peripheral side face cross each other, a cutting blade is formed. The cutting blade includes a corner part capable of machining a tooth bottom of a gear, and a main part extending to the corner part. The peripheral side face includes an inner side face in contact with a tool body and a first flank facing the main part. The mounting hole penetrates the first flank and the inner side face so that a center axis crosses the inner side face perpendicularly. The cutting insert is formed having a wedge shape such that thickness of the first flank and the inner side face becomes smaller as it goes from one end to the other end.

A bevel gear manufacturing face cutter head (2) for face hobbing and face milling wherein the cutter head includes positive blade seating surfaces (16, 18) and the capability to clamp the blades (8) tight to the positive seating surfaces and to adjust the cutting blades radially after they are pre-clamped and axially located.

A cutter head (4, 6) having a lock spring (30) utilized with an adjustment screw (16) for preventing the adjustment screw from loosening during machining. Once positioned by turning the adjustment screw, a cutting blade (8) will not change position in a mounting slot (10) due to a loosening adjustment screw.

A composite milling cutter includes a rotatable adapter plate and ring cutter. The adapter plate has a raised key portion with a peripheral side wall having a plurality of curved abutment surfaces symmetrically located on an inscribed circle, IC.sub.AP defined by the raised key portion. The cutter ring has an opening with a peripheral side wall for receiving the raised key portion of the adapter plate. The peripheral side wall has a plurality of curved abutment surfaces complimentary in shape to the curved abutment surfaces of the adapter plate and symmetrically located on an inscribed circle, IC.sub.CR, defined by the opening. A tolerance between the abutment surfaces of the peripheral side wall of the raised key portion and the abutment surfaces of the peripheral wall of the opening is such that run-out is minimized.