Milwaukee HOLE DOZER™ 2-1/4" Bi-Metal Hole Saw is proudly made in the USA and designed to deliver superior performance with its RIP GUARD™, the industry's strongest tooth form. Crafted from bi-metal with 8% cobalt, this hole saw enhances the strength and lifespan of the teeth while providing improved hole quality. It features the innovative Plug Jack™, an all-access slot design that boosts productivity by making plug removal faster and easier. For thick materials, the Plug Jack™ allows access lower in the cup, and for thin materials, it provides access higher toward the teeth. Additionally, Milwaukee’s universal Quick-Change Arbor enables quick, tool- change-outs, making this hole saw a versatile and efficient choice for various applications. Model Number: 49-56-0132