Review on 🔩 Bosch HB412 4 1 Bi Metal Hole: The Ultimate Tool for Precision Drilling by Ben Demers

This hole saw was just what the doctor ordered to cut through the outside of my house, To Install the Dryer Vent Simply cut a clean hole through two layers of wood and one layer of vinyl siding to create a perfect hole that fits snugly in the vent. The teeth weren't damaged afterwards and this beast looks ready for action for a long time.