General description Tungsten Carbide Hole Saw is a great alternative to traditional bi-metal hole saws. They cut faster, cleaner, and last longer, making them ideal for various applications including electrical construction, transit work, and general metal fabrication. The spring-loaded pilot tip efficiently ejects the cut slugs, saving time during the drilling process. Technical specifications Diameter: 3-1/8' (80mm) Material: Tungsten Carbide Usage Designed for cutting through steel plate, iron, aluminum, copper, cast iron, stainless steel, and other hard alloys. Normal maintenance extends tool life significantly compared to other hole cutting tools. Inexpensive sharpening allows for repeated use.