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drilling pvc vent pipes for combsution tests

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GW
GW Member Posts: 4,742
I am having the darnedest time trying to find a drill-tap combination tool, does anyone have a source for these?

Gary
Gary Wilson
Wilson Services, Inc
Northampton, MA
gary@wilsonph.com

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  • SWEI
    SWEI Member Posts: 7,356
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    What size? I know the Greenlee DTAP comes in 1/4-20.
  • Paul48
    Paul48 Member Posts: 4,469
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    McMaster-Carr......combination drill bits/taps
  • GW
    GW Member Posts: 4,742
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    do they make a 1/4 npt?
    I can't find one large enough at McMaster Carr.
    I will look at GreenLee.

    Thanks.
    Gary Wilson
    Wilson Services, Inc
    Northampton, MA
    gary@wilsonph.com
  • SWEI
    SWEI Member Posts: 7,356
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    Have not seen them in NPT sizes. A truss head bolt will work in PVC, though I would prefer fine threads.

    We have used 1/4" thread-serts in single wall vent pipe.
  • Paul48
    Paul48 Member Posts: 4,469
    edited April 2015
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    Worse comes to worse......North American Tool
    Phone: 800.USA.TAPS (872.8277) • 815.389.2300
    Fax: 800.USA.FAXX (872.3299) • 815.389.2952
    They have NPT.
  • GW
    GW Member Posts: 4,742
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    Thanks. I will look at these on the big screen tomorrow
    Gary Wilson
    Wilson Services, Inc
    Northampton, MA
    gary@wilsonph.com
  • Jason_13
    Jason_13 Member Posts: 304
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    Whose boiler are you using that does not give you a place to test the boiler?
  • GW
    GW Member Posts: 4,742
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    Mostly furnaces, yes most every boiler has ports
    Gary Wilson
    Wilson Services, Inc
    Northampton, MA
    gary@wilsonph.com