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K390 Edge Retention Test- Diamond VS Aluminum Oxide
4 years ago
160
There is a common theory that when sharpening high vanadium steels, diamond are a must.
With out diamond or CBN the user will experience "Carbide tear out"
In this video I take k390... a 9%+ vanadium steel... and do a edge retention test.
Once with diamond stones
Once with aluminum oxide stones
I also go to war with a burr...yea
https://docs.google.com/document/d/1IA8Bup15LyghOsmEbEBEaUUlvImh094tVQTSXjNm1-E/edit?usp=drivesdk
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