Raptor Supplies offers highly durable hole saws from Bosch, Dewalt, Grainger, Greenlee, M.K. Morse, Milwaukee, Spyder and Westward. Designed to rotate at high speeds, these hole saws are used with power drills to smoothly cut perfectly round holes into the target material. They are commonly used while installing door hardware, light fixtures and drainage pipes; as well as for making connections in pipes. For application on different metals, plastics and woods, these hole saws are offered in carbide tipped, high-speed steel, carbon steel or bi-metal teeth variants. Choose flexible bi-metal hole saws, made of high-strength steel, for applications in sanitary and electrical installations. They feature high-speed steel cutting teeth and offer excellent wear resistance. We also offer diamond grit hole saws for drilling holes in concrete, bricks, glass, ceramics and stones. They are known for maximum heat and fracture resistance, and deliver best-in-class performance.