[Features] ● For heat-resistant alloys, unequal spacing and unequal lead radius end mill that reduces chatter. ●In addition to unequal division and unequal lead, unequal lead (patent pending) for corner R section reduces chattering (compatible with thin-walled workpieces). ●A combination of base material with high thermal conductivity and highly heat-resistant coating (newly developed value coat “JC8010”).