Making a Gloryhole
 

Anyone know what tool to use to make a gloryhole? I've tried several things but none of them work too good. Anyone know what tool makes the perfect round smooth circle?

An Adjustable Hole Saw
 

It's a specialty item and usually has to be ordered. My recommendation would to try a place like 84 lumber because their prices are usually cheaper than HomoDepot and Lowes.

Think of a Metal disc with a blade or two that slides from the inside outward. Google: adjustable hole saw ;)

Thanks bro