VIKING Oops adaptor MH to holesaw arbor

VIKING adaptor for boring up / enlarging existing holes. If you have an already drilled hole that is not big enough you can use this adaptor as your pilot drill if you attached the holesaw size of the already drilled hole to it. You need the holesaw that fits the existing hole wich you attach to the adaptor. You then need the holesaw of the bigger hole you want to make and attach it to your arbor as usual. Instead of the pilot drill in the arbor you attached the adaptor with holesaw of the already drilled hole and use that holesaw as your "pilot drill" to make sure the new hole is centrered as the existing hole.