Milwaukee Hole Dozer Hole Saw with Carbide Teeth provide 50X life in extreme multi-material cutting applications when compared to bi-metal hole saws while cutting in high RPM. Hole Dozer with Carbide Teeth hole saws have the ability to cut through stainless steel, cast iron, fastener-embedded wood, cement board, fiberglass, plaster and asphalt shingles with ease. The new 3 TPI design provides fast cuts while deep gullets clear material fast while cutting. For the toughest applications where bi-metal hole saws cannot cut. Cuts stainless steel, fastener-embedded wood, cement board, fiberglass, plaster, asphalt shingles and more.