I have two sharpening steels. They both came with kitchen knife sets, and they both have a very fine-grooved surface texture. I use them to bring back the kitchen knives after the sharpened edges start to fold over from contact with the counter top.
I'm not proficient or patient enough to deal with burr removal during sharpening, so I generally just leave it and make sure that it is aligned staight ahead. The steel can do that too.
I use the steel lightly at first and then with more force weeks later as the edge becomes less responsive. Eventually, I go back to the sharpmaker for a few minutes to restart the cycle.
I keep my folders sharp but seldom use them. The kitchen knifes get used heavily, so I find the steel to be a practical approach for keeping them going between sharpmaker sessions.