The MILWAUKEE® 10-Piece HOLE DOZER™ Bi-Metal Hole Saw Kit features a new 3.5 TPI tooth design that delivers the longest life in metal applications. These Bi-Metal Hole Saws feature the industry's only Lifetime Tooth Break Warranty and take on all general purpose applications, making them the most durable hole saws on the market. Milwaukee ALL-ACCESS SLOTS solve the frustration of plug removal, for more productivity with less downtime between holes. The new slot design also provides increased pilot visibility for accurate placement and faster chip ejection keeping their cuts cool. These metal cutting hole saws with HOLE DOZER™ Thermoset Coating allow for faster cutting and are optimized for cordless tools, delivering 25% more holes per charge. The HOLE DOZER™ Bi-Metal Hole Saws are proudly made in the USA.