Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [Homebrew_PCBs] wheres a good source for drill bits for PCB's??

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2005-11-09

On Wed, 09 Nov 2005 17:30:12 +0100, Kenneth Long <kelong_2000@...>
wrote:

> n00b question... what's special about PCB drill bits,
> as opposed to what's available at Home Depot or Lowes?
> thanks,


They are made of carbide. Normal drills (HSS) will be dull after a few
holes, carbide won't.
The glass in PCBs is abrasive.
Because they are so hard, they are also very brittle, and will break
easily. HSS is much more flexible.

ST