Flaring Tool HVAC, 45° Eccentric Single Flaring Tool for 4.76mm - 19mm Copper Aluminum Tubes, Copper Pipe Flare Tool Kit for Refrigeration Air Conditioner Repair - Toolbox IncludedProduct Features Precision Flaring Equipped with a 45 eccentric cone design, this VEVOR HVAC flaring tool forms precise single flares, creating uniform and leak tight connections while minimizing rework caused by improper flaring Wide Tube Compatibility Fits 4. 76 mm (3 16"), 6. 35 mm (1 4"), 7. 93 mm (5 16"), 9. 52 mm (3 8"), 12. 7 mm (1 2"), 15. 87 mm (5 8"), and 19. 05 mm (3 4") O. D. copper and aluminum tubing with 0. 5mm 1. 2mm wall thickness,