Milwaukee HOLE DOZER™ 1-3/8" Bi-Metal Hole Saw is proudly made in the USA and features RIP GUARD™, the industry's strongest tooth form. This hole saw is constructed with bi-metal and enhanced with 8% cobalt, which significantly increases the strength and lifespan of the teeth while delivering superior hole quality. Designed for efficiency, the HOLE DOZER™ includes Plug Jack™, an innovative all-access slot design that boosts productivity by making plug removal faster and easier. Whether working with thick materials or thin, Plug Jack™ provides optimal access—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 quick, tool- change-outs, making this hole saw a versatile and reliable choice for professionals. Model Number: 49-56-0072