Gauge hole sizes & cutting techniques

["Rob T. Getzinger" <RTGetzinger@scif.com>]

I need to cut a new fuel gauge hole in my dash. The two stock cut holes
for each gauge appear to be 2 1/8 inch all the way through and 2 5/16
for the gauge to be recessed. Hole saws cut slightly bigger than those
hole dimensions.
For those that have cut gauge holes in their Spitfire dash what hole saw
sizes produce closest to stock cut hole sizes?
Thanks,
Rob


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