The 31.5 x 109mm Moulder Cutter Head is a high-quality cutting tool designed to make your woodworking project is a breeze. It features interchangeable profile knives. With its easy-to-install design and compatibility with most moulder machines, this cutter head is a versatile addition to any woodworking arsenal. The Great Lakes Carbide Profile Moulder Cutter Head is a reliable and efficient tool that will help you achieve your woodworking goals.