On Saturday 23 January 2016 12:21:03 Peter Blodow wrote: > Gene, > without being able to read what is engraved on them drill bits: those > look decent, the metal box and the price suggest they are of better > quality. Just about like mine I have been using for the last 35 years: > https://www.hoffmann-group.com/DE/de/hom/Monozerspanung/HSS-Bohrer/Spi >ralbohrer-Satz-HSS-E-Nr-114450-mit-Kassette-1-10-GARANT/p/115320 Some > of them are a bit shorter now from sharpening, very few were broken > and have been replaced. Never compromise on tools. > Peter
That was my impression too. Did you note the propaganda on the steel? Melts at something north of 4000F! I think they will be mine. > Am 23.01.2016 17:53, schrieb Gene Heskett: > > On Saturday 23 January 2016 06:18:55 Peter Blodow wrote: > >> Tom, the formula for drilling for metric threads is simple: nominal > >> thread diameter minus the pitch, e.g. 12 - 1.5 = 10.5 mm for M12, > >> or 6 - 1 = 5 mm for M6 etc. > > > > Does that not give a 100% thread? I was under the impression we use > > a .85 multiplier. I made a couple 3mm holes yesterday when carving > > up a temporary camera mount, applied that rule and used a .089 # > > drill as the starter hole. Had about the taps length to do as the > > screws I had were 12mm long and the material was 1/2" thick. Not > > wanting to load up the tap and break it since it was a crap > > Irwin/Hanson, I pecked it by hand from the mdi command line, 3mm at > > a time. Worked great. But I need to junk that set of drills, they > > are gold painted wheel weights & only good for 3 or 4 holes in alu > > before the edge is gone. I had bought one of those 115 piece things > > for about a $30 bill several years ago, and half of them have burned > > up or broken, and most are too small to be worked over by the > > original drill doctor. Its good for big bits, but has bad centering > > problems when you get below about 3/16" > > > > Looking at the fleabay offerings, what does this group think about > > Drill Hog? Like these: > > > > <http://www.ebay.com/itm/Drill-Hog-60-Pc-NUMBER-Drill-Bit-Set-Wire-G > >auge-HI-MOLY-M7-USA-Lifetime-Warranty-/181752876465?hash=item2a5150cd > >b1:g:x4oAAOSwMmBVrQ3a> > > > > [...] > > > > Thanks everybody! > > > > We have about 14" of snow on flat areas, and its still building, > > perhaps an inch/hour. A winter wonderland out, if I didn't have to > > clear some of it when it finally does stop. I stuck an arm & camera > > out the back door, and my rider and 20 kw standby are just tall > > lumps in the snow, completely covered. > > > > For those of you sort of on the "right coast" with me, orders from > > Grandpa Gene: don't go have a heart attack shoveling it. Ya'll > > hear? > > > > Cheers, Gene Heskett > > --- > Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. > http://www.avast.com > > > ---------------------------------------------------------------------- >-------- Site24x7 APM Insight: Get Deep Visibility into Application > Performance APM + Mobile APM + RUM: Monitor 3 App instances at just > $35/Month Monitor end-to-end web transactions and take corrective > actions now Troubleshoot faster and improve end-user experience. > Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > _______________________________________________ > 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> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
