They only reshape the tip. The flutes don't actually wear in service. Resharpened bits are a great deal for people like us. They can't be used in the big machines when they get too short, but they are plenty long enough for manual operations.
Donald.
--
∗Plain Text∗ email -- it's an accessibility issue
() no proprietary attachments; no html mail
/\ ascii ribbon campaign - <www.asciiribbon.org>
----- Original Message -----
> From: "designer_craig" <cs6061@...>
> To: "Homebrew PCBs" <Homebrew_PCBs@yahoogroups.com>
> Sent: Thursday, February 24, 2011 5:03:55 AM
> Subject: [Homebrew_PCBs] Carbide PCB drill ?
>
> Does any one know when the commercial guys have their carbide PCB
> drills sharpened do they just dress the tips or do they grind the
> flutes as well?
>
> Just wondering if resharpened drills will drill a smaller hole after
> sharpening or are they just a little shorter.
>
> Was thinking of getting some resharpened drills for the shop.
>
> Craig