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  1. #1
    excess's Avatar
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    What size bit and tap for dynotune gauge

    Im going to the store later to pick up the tap for the IC block off plate do you guys remember exactly what size it is we need to use.


  2. #2
    Site Admin Green Hulk's Avatar
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    1/4" Npt

  3. #3
    excess's Avatar
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    how come my instructions mention 1/8 and what does NPT stand for?

    Im also a little confused is 1/8 the diameter the hole needs to be or the thread size, I assume I need 2 numbers one for the thread and one for the diameter.

  4. #4
    Site Admin Green Hulk's Avatar
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    You know what. I think it is 1/8 NPT

    The 1/8 NPT tap will tell you what drill size you need. I believe its a #27 drill bit.

    NPT stands for National Pipe Thread

  5. #5
    excess's Avatar
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    thanks I just havent had time to get to the hardware store

  6. #6
    fabrication guru rapidacceleration's Avatar
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    yup, its a 1/8 npt.

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