General description The Kennedy variable pitch hole saws deliver high-quality holes in a range of materials, including wood, steel, brass, bronze, and cast iron. The M3 HSS cutting teeth aggressively cut to provide a very smooth finish with little to no tear out. Technical specifications Blade Material: Bi-metal Cutting Depth: 28.5mm Diameter: 86mm Number of Pieces: 1 Teeth per Inch: 4-6 Usage The holesaw is ideal for various applications including construction, engineering, and maintenance. It cuts up to 40% faster than constant pitch saws, and the varying tooth pitch disrupts harmonics to substantially reduce noise. Tooth life is extended when used in conjunction with a cordless drill. Other information