Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Re: Drilling circuit boards on the cheap:
From: AncelB <mosaicmerc@...>
Date: 2016-02-15
I use resharpened carbide in my dremel 395 with 1/8" shanks for PCB
work. They work fine....I go down to around 0.31 mm. I can go smaller
but bit breaking happens every 10 holes or so.