I’m still not having any luck making the holes bigger.
Files and drills don’t seem to touch them! :(
Drill from a (battery-powered) drill had minimal effect, one of my files did ok... could always cut a v with a hacksaw, then file it out? It's a total pain, I know.
@Engineering101 started
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I’m still not having any luck making the holes bigger.
Files and drills don’t seem to touch them! :(