On Wednesday 07 March 2018 00:00:13 jeremy youngs wrote: > Snip > You might try an er 20 all I have ever used to rigid tap. They were > also in cat 40 and 50 taper holders , tightened with wrench on bench > so that maybe a thing. I have tapped up to 1/1/2 inch with er 20 sets.
I think that calls for a pix Jeremy. Another thought comes to mind, the shars SK version collet which has a much longer rear taper, which should get a better grip. I'll check their catalog. Nope, no R8 to SK collets in it. > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users