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Question:

What grinding wheel do we use to grind HSS HSS hobs?

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!!!

Answer:

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

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