Never seen that kind of brace bit before.
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Never seen that kind of brace bit before. Looks like a type of flat-bottom bit, maybe a little worn down.
I wonder if these were used for the stepped screw holes in saw totes.
I can’t wait to get back to making mine. (So many shop projects in limbo. Ahhh!)
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They look like Forstner bits.
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Yeah but with square shanks? For hand braces? I’ve never seen them before.
I’d love to have some, but I doubt you can buy them.
A brace chuck adapter could probably be made for use with newer round shank Forstner bits.
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See the drawing of the 1886 patent for Forstner bits:
https://en.wikipedia.org/wiki/File:Forstner_bit_Patent_CA23548.png -
Thanks. Never looked into his name before. Didn’t think Forstner bits were that old.
It’s clear they were flat-bottom bits, but now I realize Forstner is pretty much the monopoly on that meaning.
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Those bits were invented for the armaments industry, to make flat-bottom holes in the wood structure of the guns.
