There are special bits for plastics, and they work quite well. Regular bits are troublesome on most plastics.
-- Will On Tue, Oct 27, 2015 at 12:38 AM, Chuck Guzis <ccl...@sydex.com> wrote: > On 10/26/2015 08:54 PM, wulfman wrote: >> >> To effectively drill in plastics you need to run the drill press on >> the highest speed you can and use a freshly sharpened drill bit. > > > If this is Perspex/Plexiglas, I've had great results with a good sharp > Forstner bit in my drill press at medium (say 750 RPM) speed and a not-too > aggressive feed.. No melting, just lots of crumbly shavings. I've done this > with sizes down to about 1/4", but no smaller. When you're almost through > the material, turn it over and complete the hole from the back side. Very > clean edges, with no chips at all. > > --Chuck > >
