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Hukshawn
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I need to make a few R8 arbors for some various tooling. What's a reasonable steel to use? I'm gonna order something up from the supplier. I will not harden as I cannot grind.
That's fair. I can appreciate that. In the end, I'd rather not spend money on metal if I mess it all up. I can just buy r8 arbors for the various things I want to dedicate arbors for, but every time I need something, I want to make it. Not only do I wind up with more pride in it, but more experience and the experience is worth it.Sure, the 1144 would likely work fine. In fact, most anything that cuts okay with a file (or hacksaw) would also be fine. It depends a little on what you are actually making (are you hanging a large boring head off that R8 or just a dedicated holder for 1/4" end mills). As a very simple approach, avoid metals that are non-magnetic and don't cause a file or hacksaw to skate. Other than that, don't sweat it - just start cutting. The piece of metal that you put your time into will be totally "worthy". You can buy that piece of 1144, but it won't work any better than any other piece of metal.
The quality of the arbor will be about 95% based on the competency of the person making it - buying some special piece of metal won't make the arbor better.