I cut 14 holes in the wooden ceiling. The wood was of the old type, at least 1 inch thick in the OLD house. The saw worked great. A cordless drill is not possible for this job. I used my 1/2 Milwaukee Magnum hole punch. The size 6 5/8 is slightly smaller than the template Juno showed, but I still like a nice tight hole, so it worked. I usually work with drywall, so in the next work we will see how he works with drywall.