Radiused (concave) inserts for turning- source needed
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  1. #1
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    Default Radiused (concave) inserts for turning- source needed

    I'm trying to find a source to buy a variety of concave lathe inserts with a corresponding indexable holder. Any pointers?

    Thank you.

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    I have used corner rounding endmills in this capacity on my manual lathe, before I had the CNC lathe.

    Regards.

    Mike

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    swiftcarb.com has them for milling cutters. No lathe tools that I saw, but you could use a milling cutter in a boring bar holder or modify a cutter shank.
    I have no connection to them.

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    You can buy brazed carbide tools that are concave. No insertable ones I know of.

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    If you want small radii, try ThinBit. This would be a standard, but non-stock, item if it fits in one of their blanks.

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    Someone did use to do these, i rmember seeing a dvert, but it was over a decade ago now. but i don't remember who, not sure if there still available, since most turn with CNC radii are a near zero effort thing.

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    Guys,

    Thank you for confirming that I'm not crazy. Sounds like the concave inserts of a reasonable size range simply do not exist.

    Back to using my brazed bits and corner rounding mills.

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    Not so fast, Monsieur!

    Corner Rounding Inserts [have to make your own holder]

    RADSTAR CORNER ROUNDING INSERTS



    – Datum Point Tool
    [Ditto]

    Concave Indexable Carbide Corner Rounding Cutters [They make some big inserts, contact them for details]

    Just search for "corner rounding inserts". Yes, most are for milling, but can be made to work with turning applications.

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    Yes, I have seen milling inserts of course and considered this option. Maybe I should look into this again.
    Thank you for the links.

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    Quote Originally Posted by MichaelP View Post
    I'm trying to find a source to buy a variety of concave lathe inserts with a corresponding indexable holder. Any pointers?

    Thank you.
    Take a look at whatCutting Tool Technologies has to offer


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