Actually, I'd suggest a slower drill speed. Less heating of the
material (and hence less melting.)

I've worked with both acrylic and polycarbonate (in my pinball hobby).
Never had a problem with the plastic melting from a regular
drill...only when polishing (using a dremel).

On Friday, September 19, 2003, at 11:29  AM, Alistair Bell wrote:

> Both plastics have a tendency to melt as they are drilled, so keep the
> feed
> rate constant and a bit on the fast side.