Has anyone had an issue or advise for drilling a clock pivot. I am at a loss with this now. I made a lathe flag to guide the drill exactly into the pivot (which it does) but the drill just does not cut. I have broken several drills now (0.40mm) and the drills I am using are carbide from "Eternal tools" so not cheap . I have also annealed the pivot but still no success. These failures are on a test piece and now worried I am worried that I fail on the real job. I have now ordered some 0.50mm dril