Title: Metal cutting tool with anvil-held indexible and replaceable cutter inserts

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Abstract: Metal cutting tools comprise a tool body including a shank and generally cylindrical tool head having top and circumferential surfaces. The tool head defines a plurality of generally radially extending slots spaced at intervals about the tool head. The slots open on both the top and circumferential surfaces of the tool head. Each slot matingly receives a U-shaped anvil. A cutter insert is clamped between the legs of the U-shaped anvil and butts against the U-shaped anvil and tool head to position the cutter insert in the metal cutting tool with at least one cutting edge exposed. The cutter inserts have polygonal shapes, square and triangular shapes being shown, and are indexible and replaceable. The U-shaped anvils are also replaceable. The metal cutting tools accurately mount the cutter inserts, are of high strength and durability, and have a long service life by virtue of the replaceability of the cutter inserts and U-shaped anvils.


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