On Sunday 13 November 2016 12:15:33 MC Cason wrote: > Gene, > > If you are machine tapping, you really need machine taps, in either > a spiral point, or spiral flute design. > > I quit buying store bought taps a long time ago. Now, I mostly buy > OSG branded taps, which are Japanese made. I have also been told that > Hertel and Guhring, which are American made, are good taps as well. I > have been power tapping with them in my manual mill and my manual > lathe, with no issues. > > To go with those taps, you also need a high quality drill bit. The > best tap in the world won't make good threads, if you use a bad drill > bit. Since Bowman is no longer in business, and I cannot buy > bowmalloy bits anymore, I have been using the Triumph Thunderbit > series of drill bits, which are made by Minnesota Twist Drill Co.
I got tired of screwing with the crooked, dull drills in the cheap kits, and bought a set of numbered drills from Mill Monster that have been truly great drills so far. $100 a kit in the usual small steel box. > These are a couple of items that I bought last week: > http://www.mscdirect.com/product/details/64943830 Look sweet, from the tip I assume drill and tap in one? > http://www.mscdirect.com/product/details/00648014 I have 2 or 3 that look like that, probably came from a Hitachi card, bought at Lowes, good stuff, but at Lowes, all fractional only. Thanks, 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> ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
