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  1. #1
    Join Date
    Sep 2006
    Posts
    27

    Drilling a .010 hole

    I need to drill a .010 hole about .060 deep...I need a short drill so there more rigidity. I am making sight pins for archery sights.

  2. #2
    Join Date
    Mar 2006
    Posts
    2712
    I don't know how many you need, but you might be better off having them "drilled" on an EDM machine.
    DZASTR

  3. #3
    Join Date
    Jan 2007
    Posts
    634
    This may not work for your application, but if I need a whole bunch of holes in a line the way I think you do for the sight pins, I am lazy and usually cheat by milling or engraving half-round grooves in two separate pieces and bolting them together.
    Last used that on a fuel atomiser, as I didn't fancy drilling dozens of .012 holes .500 deep!

  4. #4
    Join Date
    Sep 2006
    Posts
    27
    This is what I am making

    Click image for larger version. 

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    Click image for larger version. 

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  5. #5
    Join Date
    Jan 2005
    Posts
    224
    One picture is worth a thousand words!

    So is the 0.010" hole you need the main hole that the lens fits in? or ??

  6. #6
    Join Date
    Sep 2006
    Posts
    27
    I am making the pin, here is a pic of just the pin

    Click image for larger version. 

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  7. #7
    Join Date
    Sep 2006
    Posts
    27
    Click on the image so you can see it.

  8. #8
    Join Date
    Mar 2003
    Posts
    4826
    I bought a few .010" drills lately from Travers Tool. They had a pretty good selection, the shank is 1mm, I believe, and the flute length is reasonably short and stiff. I managed to drill without a starter spot....didn't think I had anything that would make a good starter dimple for it anyways.

    Oh, I used a spindle speeder to run it at 15,000 rpm. I went real real slow on the feed.....about .5 ipm in 303 stainless......I did not want to spoil the job. I managed to drill about 30 holes per drill, only penetrating about .015 material thickness.
    First you get good, then you get fast. Then grouchiness sets in.

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

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