9" x 1/8" x 5/8-11 Metal Cutting Wheel W/Zirconia, 4 Wheels, Zirconia, Osborn, New: This listing is for 4 Osborn depressed center wheels, type 27, metal cutting measuring 9" x 1/8" x 5/8"-11 (diameter x thickness x mounted threaded arbor). These wheels are designed for cutting metal and not for grinding metal or welds. They are also made specifically for angle grinders. Alumina Zirconia grain was added in the manufacturing process which gives these wheels the ability to cut through most metals including stainless steel. The wheels are double reinforced with fiberglass and have a maximum RPM of 6,800. The wheels are also commonly referred to as pipeline (cutting) wheels.
