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+--- Thread: cutting a 1 1/8" hole in plastic (/showthread.php?tid=260595)
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Re: cutting a 1 1/8" hole in plastic - John B. - 10-11-2021
A 1 1/8" spade bit is under $6 at Home Depot, Menards, Harbor Freight and will go through a 1/4" of plastic in seconds.
Re: cutting a 1 1/8" hole in plastic - apocketfulofwry - 10-11-2021
Pro tip: If you decide to go the hole saw route, after carefully drilling the initial hole, run the drill in reverse to prevent cracking especially if the plastic is brittle.
Re: cutting a 1 1/8" hole in plastic - Fritz - 10-11-2021
Spade bit. Forgot about them. On to Lowes
Re: cutting a 1 1/8" hole in plastic - Bernie - 10-11-2021
I have everything mentioned.
Soldering iron and a file.
Re: cutting a 1 1/8" hole in plastic - Fritz - 10-11-2021
be right there ...
Re: cutting a 1 1/8" hole in plastic - macphanatic - 10-11-2021
If you go with a spade bit, go undersized and file it larger. A hole saw will make a clean cut. Spade bit in plastic may not and might very well chip or crack the plastic. The plastic in your car is old and might be brittle.
Re: cutting a 1 1/8" hole in plastic - Ken Sp. - 10-11-2021
You could heat up a piece of metal tube the same size and use that to melt the hole.
Re: cutting a 1 1/8" hole in plastic - Bernie - 10-11-2021
Ken Sp. wrote:
You could heat up a piece of metal tube the same size and use that to melt the hole.
:agree: