Drill hole size for LED bezels

[Bret608]

Does anyone know the proper drill hole size for this particular type of bezel?

http://www.mammothelectronics.com/4SLEDBZ5-2-p/1000-b101.htm

I've managed to get most sizes from either the Pedal Vector Pack or from asking around here. This one's got me stumped though!

Thanks,

Bret

[jkokura]

I just know it's one more step past the Alpha 16mm pot hole size on my step bit. I think I do 6 steps for the pots, and 7 for the bezels.

Jacob

[Bret608]

Looks like 5/16" is the winner! Thanks Jacob.