This bi-metal arbor is a game-changer for my cutting tools collection.ITS quality construction and durability make it ideal for even the most demanding cutting tasks. The arbor easily fits all my hole saws, ensuring that I get precise, clean cuts every time, whether I`m working with wood, metal, or plastic. The arbor's industrial-grade performance lives up to its scientific design, ensuring that it is a worthy addition to any toolbox. My only concern is that it's a bit pricey, but its exceptional performance justifies the cost..