How to Make a Durable and Sharp Knife from an Old File
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- Опубликовано: 6 фев 2025
- How to Make a Durable and Sharp Knife from an Old File
In this video, I'll show you how to make a durable and sharp knife from an old file. This is a great DIY project for knife enthusiasts and beginners alike. All you need is a few basic tools and materials, and you'll be on your way to making your own custom knife.
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Man, that is really beautiful! Great design and wonderful craftsmanship. I've been working in wood and metals for almost sixty years, but using a file to make a knife is a new one for me. Brilliant! You've inspired me to give it a try. Thank you for posting this video.
Thank you
Hi there i gotta say it looks great!. With the hardening you did after forming the balde do you keep an eye on an exact temperature or do you just eyeball it. I wanna try to harden steel but i dont know what temoerature i gotta be at
You have to get thecsteel up in temperature until it becomes non-magnetic. When a magnet stops sticking, you are in the critical heat zone, so don't get much hotter than that.
@JackCrawford-k2p ahhh okay thank you!
@djelanokorten5956 you're welcome. Another method for making a knife from a file is to put the file in the oven (electric kitchen oven is good) at 400 degrees Fahrenheit for 6 hours. This will draw some of the hardness out so that it won't be brittle, but it will be extremely tough and hold a remarkable edge. No forging needed because the file really, really pounded when they made it. After the soak in the oven, just shape, grind, and polish, add handle. Voila. Clean the file before putting it in some ladies' clean oven. If it's oily, it will stink up the house. When it comes out of the oven, the file should be a pretty blue color with hints of purple. You will be pleased with this method, I think.
@JackCrawford-k2p so just the file in the over and go ham on it with an hammer?
@djelanokorten5956 no hammer. Just grind it to shape. It was already forged when they made it, and then they hardened it. Super hard, too hard (breakable) for a knife. Putting it in the oven anneals it. Makes it the perfect hardness for a hunting knife. It also makes it grindable. If you want to forge it, you will have to get it non-magnetic (red-hot) and then pound it. But then you have to harden it and anneal it. The oven and grind method is easiest way to use a file for a knife. To forge a knife, you should try truck leaf springs or coil springs. They make tough knives.