pitimany Posted December 1, 2006 Report Share Posted December 1, 2006 Reference Charts post has tap of 3.00 x 0.30 mm and 2.5 x 0.25 mm for the tubes I was ussing a M3x 0.35 without problems with gen tubes. Which size are the ones on ebay and ofrei ? Any ideas, Link to comment Share on other sites More sharing options...
vaccum Posted December 1, 2006 Report Share Posted December 1, 2006 Thread pitch is special to Polex crown tubes. The best option is to get a tap designed for the polex CT. vaccum Link to comment Share on other sites More sharing options...
alligoat Posted December 2, 2006 Report Share Posted December 2, 2006 small tap is 2.50 x 0.25mm and the large tap is 3.00 x 0.30mm. At least for the Ofrei ones. The ebay ones should be the same, but read the fine print and ask questions. Link to comment Share on other sites More sharing options...
vaccum Posted December 2, 2006 Report Share Posted December 2, 2006 Go with the Ofrei taps for Polex 6mm. No problems so far. Cheers, vaccum Link to comment Share on other sites More sharing options...
Guest avitt Posted December 2, 2006 Report Share Posted December 2, 2006 I've tapped about 20 cases with the set from eBay. I can recommend that one as well. Link to comment Share on other sites More sharing options...
pitimany Posted December 2, 2006 Author Report Share Posted December 2, 2006 (edited) thanks, excellent help. Edited December 2, 2006 by pitimany Link to comment Share on other sites More sharing options...
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