Gauge mounting question

I would like to make a gauge cluster for my car out of 1/4" thick wood, plastic, or plexiglass, it will be wrapped in carbon fiber vinyl when finished. Should I use a 3 3/8" hole-saw for a 3 3/8" gauge or should I use a smaller hole-saw and file it? The tachometer is 3 3/8" and my other gauges are 2 1/16".

I'm not using metal or aluminum simply because I don't have any tools to cut nice circles in them.
There are companies that make nice housings but they are way out of my price range(photo attached).

A good quality hole saw for metal will give you good results if you would prefer a metal panel. I would mount the panel to some 3/4" plywood as a backing before I drilled the holes so the panel doesn't deflect and distort the holes while drilling. Use the 3 3/8 and 2 1/16. Drill press recommended no matter what material you choose.

Kevin

Thanks, sounds easy enough.

http://www.redlinegaugeworks.com/products.asp

Quote:

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http://www.redlinegaugeworks.com/products.asp

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^^^this^^^.

I have used a couple of these and they are GREAT. Perfect fit and the redline guys are super to deal with.