On Sunday 05 November 2017 09:29:07 Jon Elson wrote: > On 11/05/2017 04:07 AM, Gene Heskett wrote: > > And where can I src from here in the US, a decent quality, 10mm 1.5 > > pitch, solid carbide spiral machine tap? Ebay's search engine and > > the sellers have no clue that there is a difference between HSS and > > carbide, using both words to describe the same item, nor what the > > difference is between a spiral tap and a spiral point. And neither > > do the sellers. :( > > Geez, I sure wouldn't spend money on solid carbide taps! > Those must cost a LOT! If the material is hard, why not > thread mill it? There are single-row thread mills that can > be used over a range of hole sizes. I've got a 1/4" solid > carbide single row thread mill from Micro-100, probably cost > about $100 today. But, it will do a wide range of thread > pitches, and from anything it can fit into up, in diameter. > I've only used it a few times, but where a tap won't do for > some reason (or you have an oddball thread pitch-diameter > combination) it is great. Takes VERY little power, no need > for spindle sync, but it is a bit slower than tapping. > > Jon
I thought of that Jon, but the only tool I have like that is both new, and an inch OD. Not feasible in a 10mm1.5 situation. Someday I figure I'll need to tap a BIG hole. :) Got Orders from the boss to go round up some pig butt from the Hickory House, a local eatery. 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
