Spyder 3-1/2-in Carbide-Tipped Non-Arbored Hole Saw

The tarantula’s carbide-tipped fangs give you effortless hole cutting without the bite. They cleanly chew through stainless steel, steel, cast iron, nail-embedded wood, plastics, non-ferrous metals and cement. Plus, they’re 10x faster than standard hole saws, and last for up to 50x more cuts than bi-metal hole saws.