Review on 🔪 Enhanced Cutting Efficiency with LENOX Tools Bi Metal Arbored Technology Hole Saws & Accessories by Kevin Abner

For an old door with the wrong size hole I used a 2-1/8 Lenox hole saw and a Dewalt D180004 set and then 1/2 inch thick plywood cut . Backer 5X5 circled the Dewalt mount and used a hole saw to drill a pilot hole in the center of the circle. I clamped the entire assembly in place with two clamps. The drilling was very smooth so I will use this method for other old doors. I sawed the hole multiple times to avoid drilling through the plywood. I used this combination based on information from various reviews.