Milwaukee HoleSawLockSetKit is designed with the innovative MILWAUKEE® HOLE DOZER™ Door Lock Hole Saw Kit featuring a new 3.5 TPI tooth design that delivers the longest life in metal applications. These HOLE DOZER™ Bi-Metal Hole Saws come with the industry's only Lifetime Tooth Break Warranty, making them the most durable choice for all general purpose applications. The kit includes ALL-ACCESS SLOTS that eliminate the hassle of plug removal, enhancing productivity and reducing downtime between holes. The new slot design also improves pilot visibility for precise placement and promotes faster chip ejection to keep the cut cool. With HOLE DOZER™ Thermoset Coating, cutting is faster and optimized for cordless tools, allowing for 25% more holes per charge. Proudly made in the USA, Milwaukee HOLE DOZER™ Bi-Metal hole saws combine durability, efficiency, and innovation for professional results. Model Number: 49-22-4063