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Sawdust and glue are fine for covering finish nails, but as a filler it is prone to shrink, crack, and not match great or absorb finishes.
That's great advice, I've actually switched to using epoxy.
No. That's why I called it my "grandmother's kitchen", not "my kitchen." And even if I did live with Grandmother, so what?
If you look at my workbench instructable, that's what I did for part of my leg vise. It works fine. Tough on a chisel but chisels can be sharpened.
There's nothing to clamp. It was a crack, not a split. The piece was not flexible.
It will clog the teeth, a hole saw doesn't have a way to remove the wasted wood so it can clog, bind, and burn the wood. If you can't drill relief holes then you need to make shallow pecks with the saw and back-out regularly to allow the sawdust to clear.
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