Homebrew PCBs

Bosch Colt with a precision collet?

Haven't used them myself, but may work for you:

http://www.precisebits.com/products/equipment/bosch_colt_collets_nuts.asp


-Pete

On Mar 11, 2013, at 8:36 PM, Jeff Heiss <jeff.heiss@...> wrote:

> I am drilling holes with #96 (0.006 inch) drill bits.  However, not one hole
> has been drilled because the bits are so small compared to the runout of the
> tool, they break in half when they touch the workpiece before any drilling
> begins.  Copper clad is my workpiece.
> 
> 
> 
> I tried a Dremel, Dremel flex handpiece, and Marathon 35k RPM micromotor.
> All three have too much runout and the bit breaks in half.  Has anyone
> successfully drilled holes this small before?  Are there any suggestions for
> a drill or rotary tool that has low runout?
> 
> 
> 
> Jeff
> 


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