On Friday 12 August 2016 21:56:40 N. Christopher Perry wrote: > I default to cobalt drills for most jobs. They are more expensive, > but I've never actually dulled one on anything less than a nasty SS. > > N. Christopher Perry
The trick on nasty SS is to center punch a dimple to trap the tip, AND have 200 lbs of push on the bit before you feel the trigger move. Y have to make them cut in the first 1/8th turn or you burn up the bit. The difference is 10 bits per hole, or 50 holes per bit. 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> ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. http://sdm.link/zohodev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
