gene heskett wrote: > > For stuff like this, it seems I should just buy an index of #10 to #70 > carbide drills, but so far all I have found in the catalogs are TiN HSS > stuff. > > Anybody here know of a supplier for carbide drills in teeny wire sizes? > Just look on eBay, there are a bunch of guys usually selling small packs of assorted 'circuit board drills'. If you want exact sizes, that is a problem, but they usually sell an assortment of usable sizes. You need a spindle that runs REALLY true and has no Z-axis bobbles or wiggles to the side when it reverses. I've drilled down to .018" with an air-bearing spindle, but that is getting tricky.
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