LAIWEI Heavy Duty Industrial Grade 3-1/8" (80mm) Carbide Bi-Metal Hole Saw Stainless Steel Hole Cutter

The tungsten carbide hole saw is an excellent alternative to the traditional bi-metal hole saw. They cut faster, cleaner, and last longer. Try TCT 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. TCT cutters are the standard for electrical construction, transit work, and general metal fabrication. The spring on the pilot bit ejects the material. Drilling: With normal maintenance, the tool's lifespan is much longer than other hole-cutting tools. Inexpensive sharpening allows for repeated use.