Best Place to get Bits for PCB Drilling

Discussion in 'The Projects Forum' started by Electroguy86, Nov 9, 2014.

  1. Electroguy86

    Thread Starter New Member

    Nov 20, 2012
    26
    0
    Well, I recently received some Micro bits from Amazon. Well they are from China and I bet you can guess what Chinese things do. Break! The first time I used the bits they began to break. All but the biggest ones.

    http://www.amazon.com/10Pcs-Print-C...qid=1415510028&sr=8-1&keywords=pcb+drill+bits

    These are the bits I bought.

    All I want to know is where to get good ones from? Ones that will not break on the first buy. They must fit Dremel 3000 and I do use a Dremel Drill Press.

    Thanks!
     
  2. KJ6EAD

    Senior Member

    Apr 30, 2011
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    Last edited: Nov 9, 2014
  3. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,675
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    I got a lot of resharpened carbide bits off of ebay years (>10) ago for a penny or so each. I don't know if such deals still exist.

    As for breakage, the smaller ones will break if you force them and/or are not using a drill press. They simply will not tolerate being off axis or bent.

    John
     
  4. ISB123

    Well-Known Member

    May 21, 2014
    1,239
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    When I was out of bits I used 1mm steel nail with its head chopped off.Drilled pretty good.:D
     
    #12, Dr.killjoy and RodneyB like this.
  5. Dr.killjoy

    Well-Known Member

    Apr 28, 2013
    1,190
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    The last time I check eBay they where all over the place for sale on resharpened bits and can be had for pretty cheap ...
     
  6. Electroguy86

    Thread Starter New Member

    Nov 20, 2012
    26
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    I am assuming that the bits from mscdirect fit a standard dremel 3000? And yes I use a press
     
  7. #12

    Expert

    Nov 30, 2010
    16,252
    6,750
    I simply stopped by a local machine shop and bought a variety of sizes...but then, I only drill bigger holes on perfboards when needed.
    I guess I can't help much on this one, but I would like to say I have gotten away with using a cut nail as ISB123 mentioned. Three or four holes is so much different from doing a whole board.
     
  8. Kermit2

    AAC Fanatic!

    Feb 5, 2010
    3,771
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    research "end mill" bits. specifically ones that are center cutting. unlike drill bits that approach the size of a strand of hair, the small end of an end mill bit flares out and becomes a 1/8 inch shaft. perfect for a dremel tool. also stronger sincr the small drilling portion is shorter than a drill bit. less chance of flex breakage. the solid carbide ones will stay sharp longer if cutting lots of fiberglass.
     
  9. BobTPH

    Active Member

    Jun 5, 2013
    782
    114
    I use Kyocera and Hertel bits bought from MCS which was linked by KJ6EAD.

    I have broken two of them by accidentally hitting them with something while they were in the drill press. No casualties when in proper use.

    Make sure you order ones with 1/8 in shank to fit in your Dremel, which is what I use.

    Bob
     
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