M6-12 recommends the use of what their hob grinding, grinding wheel, a grinding method of hob can be good recommendation, currently with 60 of white corundum grinding wheel M12 hob grinding too slowly, a grinding wheel can grind a row of hob a tooth to wear 2-3 hours, but also easy to knife sub fire! Asks God to help solve!!!
You can choose PA or SA grinding wheel, particle size 46-60#, hardness J-K, you can.
Just use CBN's grinding wheel, you can find it on Baidu and hope to help you
Choose 60-70 purpose CBN grinding wheel. Instant coating is not too big a problem
