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IRWIN® Bi-Metal Hole Saws cut through a variety of materials, including: Aluminium, Copper, Iron, Stainless Steel, Wood and Zinc. The electron beam welded High Speed Steel (HSS) cutting edge ensures stronger, longer lasting teeth. Precision set teeth provide faster penetration and cutting. And, the bi-metal construction delivers toughness and long life.

1. WELDTEC™ TECHNOLOGY Delivers enhanced durability and higher cutting speed

2. TOOTH DESIGN For up to 100% longer life and 50% faster cutting*

3. 4,5 / 5,5 VARIABLE TPI For faster cuts, less torque build-up and enhanced chip removal

4. VARIABLE GULLET DEPTHS For more efficient chip clearance

5. THICK BACKING PLATE Gives robustness for the toughest jobs 6. BI-METAL CONSTRUCTION For increased life and


*vs. previous model