Heavy-duty, industrial-grade, 1-3/8" (35mm) carbide bi-metal hole saw with stainless steel cutting edge

The tungsten carbide hole saw is an excellent alternative to the traditional bi-metal hole saw. They cut faster, cleaner, and last longer. Try the T.C.T. Hole Knife; you'll love it. Metal Drill Bits: Tungsten blades cut through steel plate, iron, aluminum, copper, cast iron, and especially stainless steel and other hard alloys. Metal Drill Bit: The spring-loaded pilot tip ejects the cut material to save time. The cutter body then cuts a clean, burr-free hole faster than twist drills or conventional hole saws. T.C.T. Milling Cutters are the standard for electrical construction, transit work, and general metal fabrication. The spring on the pilot drill bit ejects the slug. Drilling: With normal maintenance, the tool's lifespan is much longer than other hole-cutting tools. Inexpensive sharpening allows for repeated use.