Use this hole saw to cut through nail-embedded wood, concrete block, fibre cement, brick and more in one pass. It’s also capable of cutting 2 in. thick pressure-treated wood up to 6 times faster compared to standard bi-metal saws. Large carbides and aggressive tooth design for rough-in applications. High-performance carbides are brazed to the cutting edge for durability and to prevent tooth loss when hitting nails or cutting through abrasive material. Tall body for drilling through 2x dimensional lumber with up to 3/4 in. sheathing attached. Deep body slots for easy plug removal.