This is probably melamine , which machines easily, somewhat like bakelite.
Joe Gwinn
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9 years ago
Punching "Nylon" Wall Plates
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9 years ago
If you need a round hole - a wood boring bit with "tangs" on the periphery so the outside is engaged as well as the center called "brad point bits," or spade bits like Irwin "speed bore" style.
What I've found to be exceptional at cutting all plastics is the "multi tool" which uses a small blade and reciprocal oscillations to cut. (like those things doctors use to remove casts - but with real cutting edges instead of a wavy edge)