Universal Hydraulic Flare Tool Set consistently fabricates accurate flares in aluminum, steel and soft metals...1-handed operation With just one hand, you can use this tool set to accurately fabricate these line-flaring types in aluminum, steel and soft metals (but NOT stainless steel): Push-Connect: 1/4, 5/16 and 3/8 GM Fuel Line: 5/16 and 3/8 Single/Double: 3/16, 1/4, 5/16, 3/8 and 1/2 Metric Bu