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how to convert mm to thousandths

Discussion in 'Chainsaw' started by pa.hunter, Dec 13, 2008.

  1. pa.hunter

    pa.hunter ArboristSite Operative

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    anyone have a chart all piston mm and i only have mics thousands
     
  2. Bowtie

    Bowtie Gearhead

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    My 30$ napa Storm digital caliper does it for me. there has to be a chart like that on the internet...Google it.
     
  3. breymeyerfam

    breymeyerfam Addicted to ArboristSite

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    inches X 25.4 = mm
    mm / 25.4 = inches
     
    willsaw4beer likes this.
  4. pa.hunter

    pa.hunter ArboristSite Operative

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    thanks

    :) :)
     
  5. Bowtie

    Bowtie Gearhead

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    Good info!! :clap:
     
  6. breymeyerfam

    breymeyerfam Addicted to ArboristSite

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    glad to help. anyone have a lathe, mill, drill press, surface grinder, small heat treat furance, and a band saw that they want to give away? then maybe I can put some of my knowledge back to work.
     
  7. Lakeside53

    Lakeside53 Stihl Wrenching

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    you had me until the "give away" part:greenchainsaw:
     
  8. breymeyerfam

    breymeyerfam Addicted to ArboristSite

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    ok ok, I have a couple buckets of saw dust that I could trade... heck if someone filled the bill I might even throw in a 361 or 660(only if the lathe and mill had dro):clap:
     
  9. 24d

    24d Turns Wood To Ashes

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  10. Mad Professor

    Mad Professor Addicted to ArboristSite

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    I bet he'd be happy to "borrow" them too!
     
  11. PB

    PB Addicted to ArboristSite

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    You can't escape yourself
    Metrics is easy. 1 inch = 2.54 cm. 1 mm = 1/10 cm. 2.54 cm = 25.4mm.

    1cc = 1 ml also. :cheers:
     
  12. Bob Wright

    Bob Wright Addicted to ArboristSite

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    We used .0394 times by or divided by the MM to get either inches or MM. 25.4 will work for small stuff but we worked with parts that were 20' long and longer, the difference a few thou for the conversion using 25.4 was more than was allowed and the part would be off...Bob
    Exp. on a 20' part.
    20' x 12 = 240" x 25.4 = 6096 mm
    20' x 12 = 240" divided by .0394 = 6091.370xxx mm so the part would be more than 5 mm off and would be scrap. Thats like being a 1/4" off.
    Just my thought. But i doubt if anyone is running a 6000 mm piston :) ...Bob
     
  13. ray benson

    ray benson Tree Freak

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  14. Mad Professor

    Mad Professor Addicted to ArboristSite

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    1"/25.4 mm = 0.03937007874 That's 7 significant figures more accurate than 0.0394 conversion you stated.

    The 5mm you are off is due to rounding the conversion to 3 significant figures.
     
  15. tdi-rick

    tdi-rick Addicted to ArboristSite

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    40thou = 1mm is close enough for most small measurements like clearances.
     
  16. Tzed250

    Tzed250 Account Hold

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    This thread is funny...

    The world standard is the Meter....everything is taken from that.
     
    Last edited: Dec 14, 2008
  17. stephen44

    stephen44 ArboristSite Operative

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    google is also your friend it has a built in calculator - go to the home page and in the search bar just put what you want to convert in ..i.e.

    5mm in inches

    34 miles in kilometers

    500 cubic inches in cubic yards

    18 degrees centigrade in fahrenheit

    my wife uses it a lot in cookery too !

    Hope this helps someone :greenchainsaw:
     
  18. 55chevyparts

    55chevyparts ArboristSite Operative

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    I am supprised to not find this book mentioned anywhere when I searched. Ten dollars and 768 pages of info.


    [​IMG] [​IMG] [​IMG]
     
    Last edited: Dec 14, 2008
  19. 24d

    24d Turns Wood To Ashes

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  20. Lakeside53

    Lakeside53 Stihl Wrenching

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    yep...
     

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