Kennametal is building on its Duo-Lock modular end mill by offering more sizes, geometries and shank styles. The system is a modular end mill with the performance of solid carbide. It uses a double-cone locating surface like that of the company's KM or KM4X tooling design so that radial runout values do not exceed 5 microns (0.0002"). The machine maintains Z-axis coupling repeatability of 10 microns (0.0004") or better. The system provides tool-to-tool repeatability of 50 microns (0.002"), preventing the need for offset adjustment or off-line presetting when changing tools.
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