The Irwin bi-metal hole saw with a diameter of 51 mm is a powerful tool suitable for a variety of materials, including iron, aluminum, and zinc. Thanks to the innovative WELDTEC technology, this hole saw offers a longer lifespan and higher cutting speed, making it ideal for demanding applications. The variable tooth pitch of 4.5 / 5.5 allows for faster cuts and reduces torque buildup, while the thick backing plate provides additional robustness. This hole saw is designed not only for professional use but also for DIY enthusiasts who value quality and efficiency.

• WELDTEC technology for longer lifespan and higher cutting speed
• Variable tooth pitch for faster cuts and improved chip removal
• Robust backing plate for demanding applications
• Bi-metal construction for increased durability.