Review on 🔧 K Tool International KTI70061 Flaring Tool Adapter (3/16") - Efficient and Reliable Flaring Solution by Gabe Evans

With the pen pointing up, the first step on the edge is a gauge to set the correct height of the end of your line (prior to flare) over the flare tool if it double is flaring. I've found that with nickel/copper line, just one strand works best for me (I used 4Lifetime line). If you have fairly tight lines in the die + a tiny wrinkle line + a flare on the edge of the tube after finishing, just sand it gently after the flare. Save on purchasing this a la carte set to add to your set than buying the entire set when only flaring 3/8 lines. The seller was a little slow, but I was in no hurry + the tool suited me. Watch a YouTube video about double flash if you don't understand. Indispensable for the times when your rusty old pipes are problematic + in need of renewal. This isn't rocket science.