A molding cutter includes a cutter bar and a cutter head. The cutter head is mounted on one end of the cutter bar. The cutter head includes a main body and a number of cutter teeth. The main body includes a first end face, a second end face, and a curved surface. The first end face is coupled to the cutter bar, and the curved surface is coupled between the first end face and the second end face. The cutter teeth are mounted on the curved surface. A quantity of the number of cutter teeth is equal to a positive integer within a range from 8 to D*15. D is equal to a diameter of the main body of the cutter head in millimeters.

A ball cutter includes a cutter bar and a cutter head. The cutter head has one end mounted to the cutter bar. The cutter head includes a main body and a number of cutter teeth mounted on the main body. A quantity of the cutter teeth is equal to a positive integer within a range from 8 to D*15. D is equal to a diameter of the main body of the cutter head in millimeters.

There is provided a method by which a glass plate and an optical functional film can be integrally subjected to machining processing without the occurrence of any inconvenience. A production method for an optical laminate according to the present invention includes: laminating a glass plate and an optical functional film to form an optical laminate; superimposing a plurality of the optical laminates to form a workpiece; and relatively moving the workpiece and machining means, which includes a rotating shaft extending in a lamination direction of the workpiece and a machining blade formed as an outermost diameter of a main body configured to rotate about the rotating shaft, while rotating the machining means, to subject outer peripheral surfaces of the workpiece to machining processing. In the method, a feed per blade in the machining processing is from 5 m/blade to 30 m/blade.

A bull mill cutter includes a cutter bar and a cutter head. The cutter head has one end mounted to the cutter bar. The cutter head includes a main body and a number of cutter teeth mounted on the main body. A quantity of the cutter teeth is equal to a positive integer within a range from 8 to D*15. D is equal to a diameter of the main body of the cutter head in millimeters.

A milling tool for milling a material is provided. The milling tool comprises a tool shank having an axis of rotation, and further comprises a tool head at one end thereof. The tool head comprises at least two tiers, each tier comprising a plurality of flutes extending circumferentially around the tool head. The tool head comprises superhard material and the tiers are axially displaced from each other and separated by a non-cutting portion of the tool head.

Herein is provided a method of milling a brittle workpiece (46) using a milling tool (10), the workpiece (46) comprising a material, the material having a Ductile-Brittle Transition Undeformed Chip Thickness, DBh.sub.rn, the milling tool (10) comprising a tool shank (12) having an axis of rotation (14), and further comprising a tool head (16) comprising superhard material at one end thereof, the tool head (16) having a diameter (42), and operating the milling tool (10) such that an Undeformed Chip Thickness, h.sub.m, of the workpiece (46) is less than said Ductile-Brittle Transition Undeformed Chip Thickness, DBh.sub.m of the material.