The 3-1/2-inch (89MM) BI-METAL HOLESAW from IRWIN Industrial Tool is designed for efficient cutting in various materials. This high-quality holesaw features a bi-metal construction that provides durability and resistance to wear. Ideal for wood, plastic, and metal applications, it ensures clean and precise holes. The innovative tooth design minimizes friction and heat, allowing for faster cutting speeds. Compatible with standard drill chucks, this holesaw meets ANSI standards for safety and performance, making it a reliable choice for both professionals and DIY enthusiasts.