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Blade Steel and Geometry
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Danny
Mar 16, 2021
Hey Ivo, Thanks for the great suggestions. I thought about hardening after cutting and shaping. I have a 65 HRC skiver, and the thing is a frigging stone even when you sharpen it on DMT 1200 and 8000, so I’m always afraid of damaging it. It’s a relatively cheap blade but the time it takes to sharpen it is insane. Unfortunately, I do not know people who can reliably perform the service near my area. I’m sure there are but I just don’t know anyone. So, I’ll likely order the blanks from Jantz and have it done by Peter’s Heat Treating. For the lower angle, since the blanks sold by Jantz are 1/8”, I’ll have to grind away a good portion of the steel, and so I’m considering using a sanding belt to gradually remove the steel without overheating it. I’ll have to check and see at what temperature would 20CV or 4V start softening, but if it has to be done by hand, well, I’ll … I don’t want to think about that right now. 20CV is quite decent when it comes to edge retention and is easier to maintain, but I think you’re absolutely right about higher HRC being better for skiving and 4V is not only harder but also tougher than 20CV (someone on YouTube made a video of 4V chopping nails and stabbed it into an anvil, all without breaking it). Also, my experience with 20CV is limited to the 2 knives I bought from Leather Wrangler, and the performance could have a lot to do with the geometry of how they made them instead of just the metal itself. BTW, zero knife making experience here, and really don’t have time to pick up another hobby but I really want something that works perfect for me (without having to pay $$$). Thanks, Danny
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