Thank you guys for the compliments, really appreciate it!
Phil,
You are correct in the Blair style spot weld cutter bits. I use the reversible (double ended) ones. Also have what I refer to as a Spitznagel style, air drill with a flat ended carbide drill bit. This you have to have access to the backside. However, 95% of the time I’ll just use the Blair bits. The main thing is to center it in the spot weld and go through slow (you typically should see a “puff” of rust / dust pop up the instant you go through the first layer.
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Rush too much trying to get to the end when the end is closer when you take your time.
Dane
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