Single form thread mills with radius?
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  1. #1
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    Default Single form thread mills with radius?

    Hi all,

    Curious what people are using for single form thread mills. It "seems" that many manufacturers either grind them to a sharp point, or grind a flat on the tips. Neither seem to last long, and I have generally resorted to going under a microscope and carefully stoning a radius or radii on each variety.

    Any leads on who might be manufacturing/selling single form thread mills with a full radius ground on the tips?

    tia


    PM

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    AFAIK, they don't exist for some reason. Looked high and low last year for a single profile tm for a "J" thread. Mullti profile was no problem, get those anywhere. Single profile? Don't exist

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    I've been using Harvey's tipped off threadmills "for hard materials".

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    We use these in the uk. German company.

    products | WNT

    1.4-2.5mm pitch tip has a rad of 0.4mm
    2.5-5.5mm pitch tip has 0.8mm rad on

    Run fine on duplexs and inconels.

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    Quote Originally Posted by mhajicek View Post
    I've been using Harvey's tipped off threadmills "for hard materials".
    they have more listed under "Double Angle Shank Cutters - Tip Radius"
    obviously you need the 60° included angle

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    If you're willing to provide a drawing, or at least a good description of what you want, MITGI will make it, coat it, and ship it about as fast or faster than any of the big guys, for the same price or less.

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    Darn, I scoured the Harvey catalog before since I buy from them now and then, but never saw those!

    Great info from all of you, thanks guys!

    PM

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