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Hello,

Wondering if anyone knows of a source for a 5/16 radius cove and bead plunge/grove bit? I have found that most manufacturers only go up to 1/4 inch radius which is too small for the project I am planning.

Thanks,
Dan.
 

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Not in a plunge type. You could cut the bearing off one but it wouldn't plunge. You'd need a starter hole or straight groove and then plunge into that. Part of the problem for that is that the size it needs to be for that radius makes it so big that it might be dangerous to plunge. When you start getting up around 2" diameter most of the makers put a disclaimer in the package saying it should only be used in a router table which means you don't plunge it.
 

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Hello,

Wondering if anyone knows of a source for a 5/16 radius cove and bead plunge/grove bit? I have found that most manufacturers only go up to 1/4 inch radius which is too small for the project I am planning.

Thanks,
Dan.
From what I can find 5/16 is an unusual radius. Would 3/8 inch radius work?
Would itn be possible to provide a drawing or picture of what you need or the project?
 
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