The Carl Kammerling 424028 Hole saw is an 83mm saw designed for cutting materials such as aluminium, wood, metal, brass, steel, and cast iron. The saw features a high-alloy steel body with precision manufacturing, providing it with a long-lasting service life. The saw is also equipped with a durable cutting edge, which is efficiently designed to allow the saw to cut quickly and accurately with minimal effort. The saw also features shatter-proof bi-metal construction, protecting the cutting edge and providing a secure grip while on the job. The saw also features a rigid arbor designed to ensure concentricity and true round holes.