Review on Wostore Double Flaring Tool Kit with Copper Line Tube Cutter: The Ultimate Solution for Precise Flaring! by Kyam Deriphonse

My year civic decided to use all bubble fittings. I only had a double flaring tool so I decided to get one that would work enough for fixing a few brake lines. All my lines were done using 3/16 steel lines.Pros:Successfully made 16 bubble flares with no leaks on steel brake linesDidn't break horribly enough to not continue usingCons:The tool that grabs the line slips on the pipe unless you crank the wing nuts down all the way.The wingnuts aren't threaded correctly and I eventually stripped the threads on one of the wingnuts (I replaced the wingnuts with M12 nuts and the tool worked even better this way)The tool digs into your hand painfully as you're cranking it down. I had to wrap the tool in a rag to keep it from hurting too muchTips:Spray any type of lubricant on the die that goes into the line that makes the bubble. It will release easier and crank down with less effort. (wd40/pb-blaster/oil/brake fluid?. you get the idea)Be careful pulling the die off the newly made bubble flare, you can bend the tip if you're too aggressive and not pulling straight outMake sure the tool is clamped down all the way otherwise it will slip and you will end up with a failed joint.Replace the wingnuts with M12 nuts and use a small ratchet to crank down the tool, your hands will thank you for that.If I used copper nickel tubing, it might have been easier in hindsight. Still if I made 16 bubble flares on 3/16 steel lines, I'm sure you can make them on copper nickel even easier. I already had a roll of steel line otherwise I would have bought the copper nickel stuffAt this price point, great for someone at home to repair a line once in a while. I would invest in something more ergonomic if I was doing this professionally.