(Rochelle Park, NJ, United States)
This tools included with this kit are robust and work well. I had previously purchased the OTC 4504 Stinger ISO Bubble Flaring Tool Kit (ASIN: B0015PMZMU) and it sub par. This tool makes nice bubble, single, and double flares.
If you are using Copper/Nickel lines, don't use too much pressure with the deburring tool because it will gouge the line. It does work okay if you are careful. I use a countersink bit on a cordless drill instead of that tool and think the bit does a more consistent job.
I actually tried to make bad flares (e.g. no lube, no deburring, slightly crooked ends, etc., but it was difficult.
This is a very nice kit for a DIY'er. Buy it and be happy!