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Thread: Annular Cutter Arbor

  1. #1
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    Annular Cutter Arbor

    I have a bunch of Hougen style bits that I would like to use on my drill press, Can someone tell me what size arbor I have so I can figure out the Annular Cutter Arbor I need?





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  2. #2
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    Re: Annular Cutter Arbor

    Morse taper #4

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  3. #3
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    Re: Annular Cutter Arbor

    Looks like a Morse taper #4 to me.
    http://www.davehylands.com/Machinist...aper-Chart.png
    Lincolin Power Wave 450, Lincoln Powermig 255, Lincoln Pro Mig 140, Lincoln Squarewave Tig 275, Miller Big 40 G(with Hobart Hefty suitcase), Thermal Arc 95S and Esab PCM875 in an already full machine shop.

  4. #4
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    Re: Annular Cutter Arbor

    Thanks guys

  5. #5
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    Re: Annular Cutter Arbor

    Here's what they look like










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  7. #6
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    Re: Annular Cutter Arbor

    Mt4 to 3/4'' Weldon Shank?

  8. #7
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    Re: Annular Cutter Arbor

    Quote Originally Posted by Millwrightdude View Post
    Mt4 to 3/4'' Weldon Shank?
    I will need to look later. Might be MT3


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  9. #8
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    Re: Annular Cutter Arbor

    I looked at the part diagram from my drill press, Its a MT3. This is what I think I need?


    https://www.amazon.com/Annular-Cutte...ustrial&sr=1-3
    Last edited by Millwrightdude; 08-03-2021 at 04:34 PM.

  10. #9
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    Re: Annular Cutter Arbor

    Mine is MT3.


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  11. #10
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    Re: Annular Cutter Arbor

    Just make sure you have a large enough motor to turn 'em. I can't use annulars on my small press, not enough balz. My mill is the only thing that will run them well (1.5hp motor)

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  14. #12
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    Re: Annular Cutter Arbor

    My drill press is 1.5hp

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  16. #13
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    Re: Annular Cutter Arbor

    So will my drill press do it?

  17. #14
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    Re: Annular Cutter Arbor

    Quote Originally Posted by Millwrightdude View Post
    So will my drill press do it?
    You would need to be down in the 200 rpm range or less depending on hole size.


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  18. #15
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    Re: Annular Cutter Arbor

    Quote Originally Posted by farmersammm View Post
    Just make sure you have a large enough motor to turn 'em. I can't use annulars on my small press, not enough balz. My mill is the only thing that will run them well (1.5hp motor)
    That's what I prefer over a drill press. More rigidity in the spindle, better RPM selection and ability to clamp the work securely.

    I just use a 3/4" collet for the annular cutter.

    Oh and power feed!


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  19. #16
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    Re: Annular Cutter Arbor

    Hougen recommends 550 for bits up to 1 1/4" I believe.

    I run steel (up to 1 1/4) on 660 and stainless and large steel at 325 on my Bridgeport

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  20. #17
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    Re: Annular Cutter Arbor

    Quote Originally Posted by Millwrightdude View Post
    So will my drill press do it?
    I think it will. Keep to the lowest RPM, and keep the belts tight. My greatest problem has always been belts slipping. Even the mill will slip if I forget to really put some strain on the belts.

  21. #18
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    Re: Annular Cutter Arbor

    Here's a comprehensive speed/feed chart for annulars https://www.icscuttingtools.com/pdfs...ar-Cutters.pdf

    To me anyways, these are aspirational speeds on my machine. If I exceed 230rpm, the cutter will cut allright, but you have to be careful not to overload it while continuing to take material. Anything 1", and above, has a tendency to cause my belts to slip when the cutter starts to stall. And it's a Catch-22..............the cutter starts to stall because the belts start to slip I don't have the best machine, so it might not be representative of how your drill will handle the cutters.

  22. #19
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    Re: Annular Cutter Arbor

    Quote Originally Posted by farmersammm View Post
    I think it will. Keep to the lowest RPM, and keep the belts tight. My greatest problem has always been belts slipping. Even the mill will slip if I forget to really put some strain on the belts.
    Here is a 1.5 HP drill press I had where I added a jack shaft to enable RPMs down to 150.







    With the reduction of speed it is even more critical than ever to have TIGHT belts as samm mentioned.


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  24. #20
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    Re: Annular Cutter Arbor

    I use annular cutters up to 2 3/4"x 4" in a radial drill with coolant inducers and have always found it best to start below recommended speeds and feeds to get a feel for speeds and feeds that don't set up chatter.

  25. #21
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    Re: Annular Cutter Arbor

    I use the cutters quite often in my dewalt 1622 magnetic drill. 2 speed gearbox, 300 and 450 rpm. Up to 7/8" or so I use high and then low for larger ones. Ive ran 1-3/4" cutters with it and had no chatter issues at that speed. I generally use cutting oil instead of coolant as most holes I punch are horizontal.

  26. #22
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    Re: Annular Cutter Arbor

    Ive been thinking I might find a mag drill

  27. #23
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    Re: Annular Cutter Arbor

    Quote Originally Posted by Millwrightdude View Post
    Ive been thinking I might find a mag drill
    I really love mine Have not tried the cutters in the vertical mill yet - but I might.
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  29. #24
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    Re: Annular Cutter Arbor

    You won't be able to use pilot nor will the slug eject if you use a end mill holder.

  30. #25
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    Re: Annular Cutter Arbor

    Quote Originally Posted by tapwelder View Post
    You won't be able to use pilot nor will the slug eject if you use a end mill holder.
    Yes. Good point


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