Nora Lighting Round Hole Cutter for Recessed Lighting Applications features versatile cutting of plywood, plaster, and acrylic sheeting up to 7/8 inches thick or 1.75 inches thick if the other side can be drilled as well, and can also cut through brass and aluminum that is up to 1/16 inch thick. Round holes are perfectly cut everytime and Nora Round Hole Cutter also features a catch tray for dust and shavings. Hole cutter will work with either a variable speed hand drill or drill press.