After trying an inexpensive double flare tool on site. I searched Amazon and found this! It's hydraulic and doesn't require a lot of cranking pressure to get a good double flash all the time! I replaced all of the brake lines on my 2000 Silverado and making the expanders was the easiest. I can highly recommend this remedy. It's a bit pricey but worth it because the flashes it produces last a long time!
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