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LynnandCarol's avatar
LynnandCarol
Explorer
Apr 10, 2014

Drill Bit Guide

I used to have a drill bit guide (not sure if this is the correct nomenclature), but it has gone missing. The guide had holes that you could place the bit to determine the size. I have 50-60 drill bits and would like to go through them and downsize by getting rid of duplicates. Does anyone first know what I am talking about, and secondly know where I can purchase one. A plastic one would work as my old one was metal! Thanks In Advance!
  • Vulcaneer wrote:
    Horizon170 wrote:
    usmohls2@yahoo.com wrote:
    most all drill bits have the size stamped on them. Make your own with a small block of wood.


    Right but the problem is if the drill ever slips in the chuck the size is then unreadable. :(


    Then it ain't gunna fit in a drill index either.

    If using the drill in a hand drill, then caliper measurement is close enough. The hole is going to be a few thousandths larger anyway. In a machining center then the hole will be a lot closer to the drill size.


    Why won't it fit in a drill bit size gauge?
  • F105 wrote:

    Why won't it fit in a drill bit size gauge?



    The shank gets messed up and the flutes will fit but the shank won't.

    That is why I keep mine in a plastic index with the flutes down. That way the flutes stay sharp.
  • camperpaul wrote:
    F105 wrote:

    Why won't it fit in a drill bit size gauge?



    The shank gets messed up and the flutes will fit but the shank won't.

    That is why I keep mine in a plastic index with the flutes down. That way the flutes stay sharp.


    Perhaps but not necessarily true in all cases - depends on much slippage damage,if any,the shank was subjected to.
  • F105 wrote:
    camperpaul wrote:
    F105 wrote:

    Why won't it fit in a drill bit size gauge?

    The shank gets messed up and the flutes will fit but the shank won't.

    That is why I keep mine in a plastic index with the flutes down. That way the flutes stay sharp.

    Perhaps but not necessarily true in all cases - depends on much slippage damage,if any,the shank was subjected to.

    Correct.

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