you want a double flare, that kit is fine and identical (excluding the box) to the clarkes kit I've been using for 20 odd years.
practice on a bit of pipe before you do it in anger for the first time.
use the pipe cutter (massively oversized for brake pipe, I have a dinky one that's perfect for it) the make sure you deburr the pipe with the deburrer on the back of the pipe cutter before you attempt to flare it. make sure you tighten the pipe clamp evenly (both ends) or you will crush the pipe and have to start again.
practice on a bit of pipe before you do it in anger for the first time.
use the pipe cutter (massively oversized for brake pipe, I have a dinky one that's perfect for it) the make sure you deburr the pipe with the deburrer on the back of the pipe cutter before you attempt to flare it. make sure you tighten the pipe clamp evenly (both ends) or you will crush the pipe and have to start again.