The IRWIN bi-metal holesaws are designed for professionals, offering long-lasting performance in general construction, electrical installation, plumbing, heating and ventilation, and remodeling applications. The sharp, variable tooth (4-6 pitch) design ensures faster cutting and enhanced performance across various materials and applications. Its bi-metal construction and electron beam welded teeth provide a stronger, more durable blade. The IRWIN holesaw range spans sizes from 14 mm (9/16 Inch) to 152 mm (6 Inch), complemented by high-quality arbors and pilot drills for all needs. This holesaw effectively cuts through materials such as aluminium, copper, iron, stainless steel, wood, and zinc.