Best tool to drill 3/8 and 1/2 inch holes in computer speakers.
Get a step or cone drill- they'll drill really nice holes in plastic.Failing that, you ideally need to modify a bit for plastic drilling, they need to scrape rather than cut, and you should clamp a block of wood inside the work. Step drill is my favourite tool in thin materials.
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Man that made the task easy!! Went out to Harbor Freight and picked up a 3 piece set on SALE for only $8.99! Thanks Steve for your great answer and fast reply!
A drill and a standard 3/8 inch and 1/2 inch drill bit. Brad point bits are better in wood, if you have them, but the regular bits will do.