Busbar drilling and tapping line.
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Previously:
https://www.homemadetools.net/forum/...317#post218693
https://www.homemadetools.net/forum/...911#post217263
https://www.homemadetools.net/forum/...520#post122895
https://www.homemadetools.net/forum/...370#post154517
https://www.homemadetools.net/forum/...035#post168339
