... and so I have to take that back. Not good. Temp increased up to 42/44, so the few holes I made are not sufficient.

Would it be ok to use a 10cm hole saw (which I do have) to create a 10cm hole, and then enlarge it to 12 by using snips, once I get them and practice using them?
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= Taym =
MK2a #040103216 * 100Gb *All/Colors* Radio * 3.0a11 * Hijack = taympeg