Product Description Master your jobs with speed and accuracy with the Greenlee 7/8" Carbide-Tipped Hole Cutter (catalog number 625-7/8). Designed for plumbing experts, this carbide hole cutter produces 7/8" round, burr-free holes for 1/2" conduit including stainless steel, mild steel, aluminum, brass, fiberglass, and plastics. The tungsten carbide teeth are optimized for fast, easy hole cutting in stainless steel applications with no oil required, and the strong, durable one-piece construction provides an even longer life. The replaceable split-point cobalt steel pilot drill with a step design allows for quick, accurate metal cutting while requiring less force from the user. With a highly efficient design, the flange stop conveniently prevents over-drilling for a super performance every time, and the slug ejector spring allows you to quickly and easily remove slugs. Greenlee: Professional. Nothing Less.™ From the Manufacturer Greenlee's carbide tipped hole cutter set has multiple tungsten carbide tips for long life and smooth cutting. Cut fast, accurate, high quality holes in stainless steel, copper, aluminum, steel. Flange stop prevents over drilling. Replaceable cobalt steel pilot drill, with split point tip design, to improve performance and resist walking; eliminates need for center punch.