Always the way. I had a very quick task to turn down a rim on two small inserts. Things did not go to plan.
They started out as 16mm diameter spacers and I needed to leave a 3mm rim on them. The ER32 collet block in the lathe chuck was the obvious choice.
the job was easy enough but the threads bound getting the first one out.
There was no way it was coming off. I hit it with a hammer then added a long bar and all we did was snap the collet nut spanner. Obviously the angle grinder did the trick. With care and a bit of luck, I managed to avoid damaging the collet.
With it apart, where the threads had bound was obvious.
I finished the second one using my R8 mill tool version, held in the lathe chuck. Not ideal, but it did the job.
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