- IMPROVED PERFORMANCE: Weldtec variable tooth design delivers a long life and more efficient cutting
- FAST CHIP REMOVAL: Variable depth gullets reduce friction for improved chip clearance
- BUILT TO LAST: Heavy-duty bi-metal construction increases durability for extended life
![Irwin® Bi-Metal Hole Saws, 4-1/4", 5 3/8" H x 4 5/8" L, #IR-373414BX (1/Pkg) Irwin® Bi-Metal Hole Saws, 4-1/4", 5 3/8" H x 4 5/8" L, #IR-373414BX (1/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/312664/449164/373400BX__89601.1669667493.jpg?c=2)