Ideal for cutting holes to install fiberglass, cellulose and other injected insulation. Carbide tips are brazed to the hole saw body with special high-temperature silver solder. Elongated slots allow easy plug removal. Consistently cut round holes are easily patched with wood or plastic plugs. Complete saws include cutter head, shank and carbide pilot. Stucco saw cuts stucco, mesh, asbestos or aluminum siding.