View Tameson's range of cutting ring fittings. Cutting ring fittings are typically used in hydraulic systems and are considered flareless fittings. They consist of the body, the cutting ring, and the nut. When tightened, the cutting ring slightly cuts into the tube’s outer surface creating a proper seal and sturdy connection. It is important to know your media to properly select the right material. Common materials are brass, stainless steel, and zinc-plated steel. Cutting ring fittings with 2, 3 and 4 connection points are available.