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— The NMBM is also fabricated by the CNC tool grinding machine, its diameter is also 0.2 mm, with a 15° relief angle and 35° helical flute. Download: Download high-res image (452KB) ... Development of polycrystalline diamond micro end mill for milling-grinding combined machining of cemented carbide. J Manuf Process, 79 (2022), pp. 844-853.