Milwaukee HOLE DOZER™ 4-1/8" Bi-Metal Hole Saw is made in the USA and built to deliver exceptional 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 superior hole quality. The innovative Plug Jack™ design features an all-access slot that speeds up plug removal, improving productivity. It versatile access for both thick and thin material applications—lower in the cup for thick materials and higher near the teeth for thin materials. For added convenience, Milwaukee’s universal Quick-Change Arbor allows for fast, tool- change-outs, making this hole saw a reliable choice for demanding tasks. Model Number: 49-56-0217