Surface Analysis of ZrN Endmills After a Sodium Hydroxide Bath

Yep, absolutely. They were gummed up and I mentioned them in this post (Need help testing cutters). I was really deep for 1/8" endmills and you commented that I was probably deflecting and fighting that.

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Right, I would like to revise my previous statement. Strong acids like hydrochloric and sulfuric will damage them. Acetic acid (vinegar) should be just fine. I wouldn’t worry about it and now I am curious to give it a try myself.

I just need to gum up another endmill now…

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No worries, it always comes when you either don’t want it or don’t expect it lol.

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