Do you have milling cutters with outer diameters of less than or equal to 1mm?
A lot of, do the milling cutter has, I have, but the general minimum is 0.3mm,There are also very few manufacturers doing 0.2mm knives
Yes, there is a D0 - 2 Sanling coating, very expensive
The smallest diameter in GB 1110 is 2 millimeters,In CNC engraving mills, milling cutters with outer diameters of less than or equal to 1mm are seen.