The DEWALT ELITE SERIES™ Multi-Material Hole Saws feature large carbide tips to resist wearing down when hitting nails or abrazive material. The carbide tipped design cuts through abrasive materials including wood with nails, concrete block, and fiber cement. An aggressive tooth design cuts through wood with nails quickly for high volume drilling. The deep saw design allows for drilling 2-By dimensional lumber with 3/4-in. plywood in one pass.