HSS iathe internal threading tool, name
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  1. #1
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    Default HSS iathe internal threading tool, name

    I am looking for a small internal threading tool to use on a lathe. I am thinking of the kind that look like an allen wrench forged from a rod and sharpened on the short leg. Or the kind that are just a straight rod with one side ground off so the point sticks out one side. I do not know what to call these so all I can find are insert type which are too big. I suppose I could make a mini boring bar and use a 1/8" round tool.
    Bill D

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    I have a bunch of this type: Criterion example

    You have to zoom in on the bottom of the first image, but you can see they get pretty small.
    Other than eBay I don't know where to get them these days.

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    Contact Bokum Tool Co., a USA maker of internal threading tools of many sizes, including really small in HSS and carbide. They also make great boring bars. The tips are form ground, so you just grind the top to sharpen, leaving the 60 degree angle unchanged. Komet in Germany makes similar products. Bokum might be Criterion's supplier.

    Bokum Tool Company, Inc.

    https://bokum.com/Files/compbrochurefinal.pdf

    Larry

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    PH Horn.
    Iscar.
    Maybe-- Richards Microtool.
    Thinbit?? (not sure)

  5. #5
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    Quote Originally Posted by ChipSplitter View Post
    PH Horn.
    Iscar.
    Maybe-- Richards Microtool.
    Thinbit?? (not sure)

    Add Micro 100 (now owned by Harvey)to that list.

  6. Likes ChipSplitter liked this post
  7. #6
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    Quote Originally Posted by TeachMePlease View Post
    Add Micro 100 (now owned by Harvey)to that list.
    Oh, how could I have forgotten them??

  8. #7
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    Quote Originally Posted by ChipSplitter View Post
    Oh, how could I have forgotten them??
    I remember them pretty good when parting 1" diameter aluminium bar...

    dsc_0899.jpg


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