The MILWAUKEE 12-Piece HOLE DOZER with Carbide Teeth Hole Saw Kit features a new 3 TPI design that offers fast cuts with the durability of a bi-metal hole saw and life of a carbide hole saw. This Milwaukee hole saw provides the longest life in general purpose and extreme materials with the ability to cut through stainless steel, cast iron, fastener embedded wood, cement board, fiberglass, plaster, asphalt shingles, and more with ease. Deep gullets clear material fast while cutting, and Milwaukee's 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 cuts cool. The HOLE DOZER with Carbide Teeth Hole Saw has a cutting depth of 1.62 in., allowing clearance to handle cuts in a wide range of materials. Milwaukee HOLE DOZER with Carbide Teeth Hole Saws are proudly made in the USA.