Lisle Combination Flaring Tool - Single, Double, ISO Toolsource #96335 Manufacturers Part Number #56150 $96 .95 Combination Flaring Tool Works for Single and Double Flares, Also ISO (Bubble) Flares. This set includes all the adapters and tools necessary for single and double flaring (standard and metric) plus the ISO (bubble) flare. Works on aluminum, copper and soft steel tubing. Not recommended for stainless steel. The set is packed in a plastic molded storage case with complete instructions .