The Irwin bi-metal hole saw with a diameter of 73 mm is a powerful tool suitable for a variety of materials, including wood, plastic, iron, aluminum, stainless steel, copper, and zinc. This hole saw features WELDTEC™ technology, which ensures a longer lifespan and higher cutting speed. The variable tooth pitch of 4.5 / 5.5 allows for faster cuts and reduces torque buildup, improving efficiency in chip removal. The robust backing plate ensures that the hole saw can withstand even the most demanding applications. The bi-metal construction contributes to the tool's longevity and durability, making it a reliable choice for both professional and hobby users.

• 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 design for increased durability.