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Step Drill

How can I make a hole in a quarter larger? ?

I need it to be a size 5 3/4 for a coin ring (it's legal!) I already made a hole, but I don't have a drill bit large enough to make it fit my finger. I also don't have a step drill, dremel, or metal file. Can I use a knife for carving and sandpaper? I'd appreciate any advice or suggestions.

Thanks!

-J

A round file would be the cheap tool for the job. Without a file, drill, or grinding dremel, then sandpaper is the best option. I dont know how much you have to remove to get to the size you want. Sandpaper is a slow way to go. I would find a round stick that just fits inside the hole after you wrap some sandpaper around the stick. Aluminum oxide, silicon carbide and emery paper will remove metal best.

Using a knife to enlarge a hole in a coin just sounds like a nasty accident waiting to happen. The knife can't easily cut metal and if it does, it will be a rough and sharp hole that will make a painful ring.

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