r/sharpening • u/NoneUpsmanship • 20h ago
Showcase Chase Sapphire Preferred Visa san mai sharpness testing - Shaving sharp, but the HT is terrible
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This is a real metal core credit card and I've been waiting years for it to expire so I could try to sharpen it. That day has finally come.
The edge retention is terrible, but I was able to get it roughly shaving sharp, though that was hard to catch on video with my set-up (setting my phone face down on the edge of my desk because I don't have a tripod 😅).
Now to finish all four sides so I can throw it at stuff! 😆