I'm rummaging around my shop trying to find a carbide tipped metal drilling bit...I remember buying it a couple months ago, just have to find it. The heavy duty pot I have will likely require more than a cheapie bit.

A couple hours ago I stopped by both local restaurant supply houses. Neither had the 1.25 qt Vollrath or Polarware bain marie inserts I was looking for, but I did find a slightly tapered stainless insert that's probably about 1-1.25 qt. It doesn't have a lid but is slimmer than the 1.5 qt that I already had. I might end up getting the one I really want online but I plan to wait til I get the Maxpedition pouch (if the one I have fits well enough I won't bother).
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman