Radiusing Internal Features

I'm currently working on some knives that have enclosed finger rings and trying to figure out a good way to round the internal edges. Hand sanding is right out from time alone. I was thinking a dremel with a sanding drum would get you some of the way, but was hoping somebody might have something a bit faster and more even. Suggestions?



Edited 1 time(s). Last edit at 02/16/2023 04:50PM by Cowan.

Cowan,
I was thinking for the bevels a conical sanding drum than matched the diameter of the holes/rings, and same for the insides, but just a regular straight sided sanding drum. Just spitballing, as I haven't done anything like this before. Maybe ask if you haven't already on one of our message groups on Facebook, Instagram, or Discord, there are a bunch of knifemakers there that are active. If you aren't signed up, send me a dm/pm and I will get you straightened out.
Take care,
Jason