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No Tapping fluid available, any suggestions for a substitute?

Discussion in 'The Garage' started by mr.smartass, Jan 7, 2007.

  1. mr.smartass

    mr.smartass 1 ton status Premium Member

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    Went to Sears and Wal-mart (only places open at the time) but neither had any type of cutting or tapping fluid or oil... I'm just wondering if there is anything thing else I could use as a substitute, I've got to drill a few 3/8 holes into some flat 1/4 inch plate, I've already got a cobalt drill bit from sears. Any Ideas?
     
  2. garlicbreath

    garlicbreath 1/2 ton status

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    motor oil works for me.
     
  3. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    Any light oil with a high smoke temp.
     
  4. Corey 78K5

    Corey 78K5 1 ton status

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    ATF works excellent.............
     
  5. 454k30

    454k30 1/2 ton status GMOTM Winner

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    motor oil, gear oil, lucas oil, something that doesnt catch fire instantly.
     
  6. k20

    k20 3/4 ton status

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    Ive used marvel mystery oil & WD40, though the wd40 evaporates too quick.
     
  7. sandawgk5

    sandawgk5 3/4 ton status

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    I have WD-40 but gear oil works well also. It kinda stays put:D.

    Ira
     
  8. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    Tap Magic.
     
  9. BB402Blazer

    BB402Blazer Newbie

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    I would assume that an auto parts store would carry cutting oil before walmart and sears would.
     
  10. mr.smartass

    mr.smartass 1 ton status Premium Member

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    yeah well it was late and the autoparts stores were closed. I stepped up through a few bits but once i got to the bigger ones i could not get it to drill any more, I'm using a drill press, are the rpms to low or what??? I had to find thinner metal...

    oh yeah and who carries tap magic or something like that? I haven't seen it at any parts stores...
     
  11. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    pb blaster! high flashpoint and works great
     
  12. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    Try about 900-1000 RPM.
    Granger or MSC
     
  13. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    900-1000rpm? its for tapping holes, right? you dont tap at 900 rpms... and my cordless drill never smoked out with blaster, and i cut 1/2" holes in 1/4" plate...
     
  14. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    Drill at that speed.
     
  15. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

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    do you really need anything to drill such a small hole through such thin material? I would think that starting with a smaller bit like 3/16th and then going to 3/8 would be enough. I use tapping fluid for just that, tapping. or am I missing something?
     
  16. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    Usually for drilling you need to cool the drill bit to keep from fooking it up on stainless or thicker materials.
     
  17. Jimbo*

    Jimbo* 1/2 ton status

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    If it wouldn't drill anymore, either your bits were dull, or the metal "work hardened", that is to say it became harder through the repeated heat/cooling of drilling consecutively larger holes. You need to increase step size and also increase rate of feed.
    Jimbo
     
  18. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    could always use a torch or plasmakutta and blast a hole then use the drill to clean it up...heh
     
  19. garlicbreath

    garlicbreath 1/2 ton status

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    Oh yeah, drill bits LOVE to clean up those holes!:mad:
     
  20. Confedneck79K30

    Confedneck79K30 3/4 ton status

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    sry meant the drill w/ a carbide burr..
     

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