I need to dill 3 1 5/8 holes into a 2 1/4 16ga SS tubing. What would be the best way to drill these holes? I was thinking using a tubing notcher and a 1 5/8 hole saw, but most tubing notcher's only accept 2" tubing. I don't have a drill press, just a drill and these holes have to be perfectly aligned. This is for a log type manifold. Any help would be really appreciated.
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