The newest addition to Richelieu's line of saws, the Bosch Hole Saw is powerful and multi-purpose, and delivers up to 10 times the speed and lifespan of standard hole saws, the company says. It drills  into multiple materials such as wood, drywall, brick, cement board and stacked materials, and is capable of boring holes from 1 in. to 6-3/4 in. High-quality tungsten carbide teeth provide added strength and longer life, while the thin-kerf design contributes to faster speed and cleaner cuts, the company adds.