Is this the fastest and most accurate way to cutout windows? I certainly think so, plus, it's extremely easy to do! Using the Amana Tool 47104 1/2" diameter flush trim bit, available from @toolstoday, to cut out the siding for windows on the chicken coop. This method worked out great, required no measuring or removing the siding multiple times to mark out and cut the window location. I'll definitely be doing it this way going forward! | Toolstoday Router Bits and Saw Blades