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Drilling with a Forstner bit

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  • Drilling with a Forstner bit

    When drilling with a Forstner bit what speed would I use on my drill press? Drilling a 1/2" hole. The speeds are 620, 1100, 1720, 2340 and 3100 RPM. This is a fairly thick piece of Pine about 1-3/4”.

    Thanks,

    -Bill
    -Bill

    My saw is a DeWalt788 Measure twice; cut once; count fingers after cut

  • #2
    I typed in forestner drill bit speed chart and there are a number of sites listed . Hope this helps
    Smitty
    Smitty
    Dewalt 788

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    • #3
      Bill, The rule of thumb is the bigger the hole the slower the speed, in regards to your question and according to a chart I down loaded the correct speed for a 1/2 forstner bit drilling thru pine is 2400rpm.

      Here is a direct link to see for yourself.

      http://www.ibiblio.org/twa/info/drillSpeedChart.pdf
      Bill

      DeWalt 788



      aut viam inveniam aut faciam

      God gives us only what we can handle.. Apparently God thinks I am one tough cookie.....

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      • #4
        Thanks

        Thanks, guys, I down loaded that chart and it will go on the wall next to my drill press.

        Bill, that chart covers about everything on drilling.

        -Bill
        -Bill

        My saw is a DeWalt788 Measure twice; cut once; count fingers after cut

        Comment


        • #5
          Hey - I paid a couple of bucks for that same chart before the internet became so prolific. The wonders of modern technology!
          Dan

          -Just do'in the best I can every day

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