Features: 1.Heat by Friction:Preserves copper39;s malleability during the molding process, for a leak-tight fitting. 2.10X faster:Flares and swages in 5 seconds: Up to 10X faster than conventional tools. 3.Made of high-quality stainless steel, durable. 4.After installing the air conditioner, unfold the copper pipe to interconnect the two copper pipes. 5.Avoid Cracks and Leaks:The high-temperature process will assure a perfect fitting, the metal doesn39;t crack or thin. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Description: Material: Stainless steel Height: about 45mm / 1.77in; 50mm / 1.97in; 55mm / 2.16in Size: 7/8 22.2mm 3/4 19mm 5/8 15.9mm 1/2 12.7mm 3/8 9.5mm 1/4 6.3mm Colour: Black Quantity: 6pc/set Package List: 1 set x Forging Tool Bit Set 6pcs