If you want one that will last you need to spend some money. Ridgid makes professional grade flaring tools, but your looking at $120:
https://www.supplyhouse.com/Ridgid-2...6ffa33e492f4d0
The dies won't get wallowed out in one or two uses like the chinese made ones do. Notice the bolt to put pressure on the dies so they don't deform, and slip.