This is why sets of router cuters always have plastic inserts to hold the cutters.
Even sets in wooden boxes have plastic inserts.
It's worth getting some plastic tubing with an inner diameter a little bigger than the cutter shank and drill holes in your plywood to take short lengths of this tubing.
Even sets in wooden boxes have plastic inserts.
It's worth getting some plastic tubing with an inner diameter a little bigger than the cutter shank and drill holes in your plywood to take short lengths of this tubing.