If you are drilling less than 100 holes, I doubt the bit will get dull. I buy the smaller 3mm and down bits from Chinese suppliers in bulk in ziplock bags. They are so cheap there is no point wasting time sharpening them. The cost works out to 16 cents per bit.
I think this is why the sharpeners only go down to a minimum size, it is not worth it for a 16 cent bit. Yes they are good quality One example ebay.com/itm/134264963420 <https://www.ebay.com/itm/134264963420?hash=item1f42d0c15c:g:XMQAAOSwYcNjPOBi&amdata=enc%3AAQAHAAAA4KkQDN3Jz5CU5LGL9RDC7lKBFQlXdWnAYLweheWZh1jINk0kYnH%2FMPteG5FoxxG2XCdJRZV%2BozxczP5WigD25pfrjuoLk68FbFDNy%2Bdj51fWjd%2B%2FQgIskWUhiBUlHnHYnArgvvU4RjSWRet%2Bi7aNy3EbMj2xjXZIbzBJDkMUbXI7UGCim5MqWxrW9wo1CDhmlRU9ABpKLWdZ0YF2TA%2FVqwAyroKlxplqpTKZi2AYuQGqCd4HWOpVmUcZgoL2NzSh4euK4KbkIuaV%2B5OYDK6QgmiFe1VSOeeQpw8Dm%2FWiu%2Byt%7Ctkp%3ABFBMnK_88qRh> On Sun, Dec 18, 2022 at 9:54 AM gene heskett <ghesk...@shentel.net> wrote: > Greetings all; > > As many of you know a drill Dr is the bees knees, for drill bits above 6 > or so mm, but a disaster for smaller bits due to the tolerances of the > stamped and plastic chuck giving you lop sided grinding. AKA BIGGER holes. > > So, what jig or machine do you all use to sharpen drill bits in the > below 5mm categories? Or should I gently spiral down a 1/16" SC mill, > but that runs out of DOC long before it reaches thru a 20mm square CF > tube. I've about 35 such holes to drill in 1mm thick wall CF, 8 of which > need to go all the way thru both sides of the tube. Those will all be > thread clearance for 3mm screws, but 8 of them will need to be for a > 3mmx.5 tap, in 4.1mm thick alu. CF will no doubt be hell on drill bits, > so it (or they) will need resharpened frequently I expect. > > Thank you, stay warm and well everybody. > > 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, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/> > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
