Resurfacing Aluminum Cylinder Heads on a Bport Mill? 50Ra ...
105. 50Ra is the correct figure but my dedicated head surfacer cuts a 12Ra on aluminum. IMO 50 Ra is way too rough for mls, even though the manufacturers use that number. I sold the last 10" CBN/PCD milling head with R8 shank that my buddy built and sold (now retired). He built head fixtures for vertical mills that come with the milling head ...