Milling Cutters With Round Or Serrated Inserts

Iscar has expanded its Millshred family of tools. The Millshred is a new style of cutter that can carry a serrated cutting edge insert as well as traditional regular round inserts. Both inserts have a protruding cylinder on the bottom with locating flats designed for precise indexing and positioning of the insert in the cutter body.

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Iscar has expanded its Millshred family of tools. The Millshred is a new style of cutter that can carry a serrated cutting edge insert as well as traditional regular round inserts. Both inserts have a protruding cylinder on the bottom with locating flats designed for precise indexing and positioning of the insert in the cutter body. The serrated insert has four indexing orientation options while the round insert has eight.

This cutter is designed with deep cavities in mind. Typically, milling deep cavities with long tool overhang can cause vibration and instability and can be problematic because of difficult chip evacuation. The Shredmill's serrated non-continuous cutting edge is designed to overlap and provide an effective cutter configuration that produces smaller ships. By producing smaller chips, the tendency for chips to be re-cut is reduced. Chip evacuation is improved, which, in turn, helps to prolong the life of the cutter and inserts as well as improve the finish on the workpiece.

The new ERW Millshred end mills include tools in the 1.0", 1.25" and 1.5" sizes with straight and tapered shanks and with the Flex fit threaded connection. In addition, all ERW tools have coolant holes. Inserts are available for machining stainless steel (martensitic); stainless steel (austenitic), aluminum and high-temperature alloys; and  machining low alloyed and stainless steel and high-temperature alloys.