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Thread: Drill sizes for taps

  1. #1

    Drill sizes for taps

    Quick question. What size drill bit would I need in order to tap holes to:
    -10-32
    -10-24
    -8-32
    -1/4-20
    -1/8NPT

    Thanks!

  2. #2
    Join Date
    Oct 2004
    Location
    Daniel Island, SC
    Posts
    1,471
    you can google a drill tap chart.

  3. #3
    Join Date
    Jan 2001
    Location
    Cottonwood, Az.
    Posts
    5,827
    Tap----------Drill
    10-32-------#21
    10-24-------#25
    8-32---------#29
    1/4-20-------#7
    1/8-27 NPT---R

  4. #4
    Thanks Luke!

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