UNIVERSALITY Carbide teeth optimized for cutting various materials: nail-embedded wood, concrete blocks, fiber cement, and bricksDRILLS THICK MATERIALS inner depth 60 mmDURABILITY Lasts up to 50 times longer than an equivalent Bi-Metal hole sawFAST AND EASY HOLE CLEANING Deep body slots allow easy waste removalUP TO 6 TIMES FASTER Compared to Bi-Metal hole saws