Unfortunately, I think you're right.If you can't drill it with a cobalt bit, then you are most likely not going to be able to tap it.
I built a similar turner and just adjust it from one side, a bit inconvenient but it works.
Now, that's a thought. Thanks.Rotate the cutter to be below the workpiece and reverse the spindle rotation.
Be careful if you're using a screw on chuck.
Characteristically beautiful work, Mark. Do have pix from other angles?Nice job Terry,
I put my knob adjustment on the other side, cut a hex key at the end of my knob and retained with a small screw. Will pull mine out and see about the other side. I went with a CCGT32.52 so I could get a sharp edge, others grind HSS or use small round inserts.
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Ade didn't have a Criterion boring headUnfortunately, I think you're right.
Wonder how Ade did it?
Oh! Well that solves the mystery! His looks nearly identical to mine, and I jumped to the conclusion that it was a Criterion. I went back and listened a little more carefully, and I don't think he ever identifies the brand of his boring head.Ade didn't have a Criterion boring head