General description Featuring a constant pitch, the Kennedy 70mm Diameter (2.3/4") Bi-Metal Holesaw is the first choice for cutting thin sheet materials up to 3mm thick. It produces high-quality holes in various materials including wood, steel, brass, bronze, cast iron, aluminium, and plastic. The holesaw features a hardened HSS cutting edge welded to a tough alloy steel body, ensuring heavy-duty, shatter-resistant construction that is virtually unbreakable. Technical specifications Diameter: 70mm Cutting Depth: 38mm Blade Material: Bi-metal Number of Pieces: 1 Teeth per Inch: 6 Other information