... he used a flat bottomed 3mm (.118) for the rough cut and a 1mm (.039) ball end for the finish cut..."

Did he say why he used such small cutters? I can see he may have been concerned about damaging the Birdseye pattern, but 1mm seems excessively small. The Surface foot/minute number for a 1mm diameter cutter at 18000 RPM is less than 200, if my quick math is correct. If I recall correctly it should be well over 4000 SF/M. I probably should check that as I haven't looked at the numbers for wood in years.

Did he say why he used such small cutters? I can see he may have been concerned about damaging the Birdseye pattern, but 1mm seems excessively small. The Surface foot/minute number for a 1mm diameter cutter at 18000 RPM is less than 200, if my quick math is correct. If I recall correctly it should be well over 4000 SF/M. I probably should check that as I haven't looked at the numbers for wood in years.

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