BiggsVI

Hey does anyone have a cut out guide for making 12 inch countersunk speaker rings using the Jasper 200 Circle jig with a 1/4 inch straight router bit. This is my first time attempting to make subwoofer rings. Here are the specs for the woofer I'm using. The overall diameter 12.03”, 305.5mm Baffle Hole Diameter 10.95”, 278.1mm Mounting Holes Diameter 0.25”, 6.4mm Mounting Holes B.C.D. 11.59”, 294.3mm Thanks in Advance.