What makes it easy are the concentric rings on the back of the insert..
The preferred method is to take some screws that fit the base of the router, and grind points on them, after cutting the heads off.. (I chuck them in the drill press and use a file).. Screw those into the router base with the points pointing out, set the router on the insert, and make sure it's centered.. Gently tap the base to make small indents in the insert plate.. Then drill the holes.. |