The Progressor for Wood and Metal hole saw is a durable hole saw designed for fast cuts in wood and metal. A progressive tooth design provides optimal cutting performance and quick chip removal. This hole saw is made from bi-metal HSS (high-speed steel) with an 8% cobalt alloy, reducing the risk of tooth breakage and increasing heat resistance for extreme durability and longevity. It is suitable for cutting wood, metal, and plastic and is compatible with all cordless and corded drills.