On Wednesday 17 March 2010, Ian W. Wright wrote: > >>>>>>>>>If you use 0.4mm drill and have little "to high" > >feedrate then this is >recipy to broke that drill.>>>>>>>>> > >I regularly use 0.2mm drills and sometimes even down to 0.1 >- and that's carbide drills drilling tool steel usually... >Have you looked at the price of 0.2mm carbide drills >recently?? Fortunately, I can often get hold of a few 0.3mm >and above drills ex. the printed circuit industry but they >are getting harder to find recently and anything smaller >than that is usually special order... > >Ian >_____________________ >Ian W. Wright >Sheffield UK
And what sort of a microscope do they use to sharpen such a tiny beastie? Or do they just cnc the sharpening process and assume its good? -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) BOFH excuse #197: I'm sorry a pentium won't do, you need an SGI to connect with us. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
