The Tolsen 33040 flaring tool kit is designed for creating precise 45-degree flares in tubing used for sanitary, heating, ventilation, and air conditioning systems. This set includes a flaring cone, a flaring bar, and a yoke, allowing you to work with a wide range of materials including soft copper, aluminum, brass, and thin or mild steel. To ensure versatility across different projects, the tool supports both metric sizes from 4 to 16 mm and imperial sizes from 3/16" to 5/8". The cone is crafted from heat-treated #45 carbon steel with a chrome plating, while the bar is made from powder-plated #45 carbon steel. A zinc-plated surface protects the components from rust, making the kit a reliable choice for technicians who need durable equipment for frequent installation and repair work.