Trying them out today & I found the underside rear/edges of the cutter are marring the face of my work at the knifewall once I reach a depth of approx 1mm in the recess. I’m practicing the leaf inlays as shown in the Hand Mirror project.
Previously I only had the beat-up original half inch blade that came with the router & did not have this problem. It seems that the side & rear edges of the old cutter are a bit rounded vs the new blade side edges being sharp.
Do I need to fettle these to stop them digging in to the face of my work, or is there something else I am missing?