antique countersink bits

[jluke]

found some old  small diameter counter sink bit ,will the work on metal,fits in a brace.thanks guys

[Boatman53]

I have a couple of those also but tend to use them mostly with wood as I consider the brace a woodworking tool. There are breast drill with brace type chucks and those I consider more for metal. But that doesn't really answer your question. I think you would have no problem using them on brass. Before I used them on steel I would try and assess the hardness of the bit. Does it file easily to sharpen or do you need stones. If it files easily I wouldn't use it on steel.
Jim

[Mark Elliott]

Here is a link to  my blog which shows metal working brace bits and an countersink.   They work very well when well sharpened.

http://www.markelliottva.com/wordpress/2015/06/18th-century-gunsmithing-tools-metal-cutting-brace-bits/