I am asking for my cousin so I may not know what I am talking about. He gave me an old chain box that says H30 072G x 5018406-72, 3/16" 4.8mm .025" 0.65mm. I don't know if that is the chain he is running now ( or some how ended up with a different type) but his problem is that the current chain that he is running, doesn't cut that good, even when new. To me it looked like a safety chain anti kickback chain that I use to run on my Stihl until I found out about the regular one. So my question, is that H 30 chain I described above the correct non safety, kick back chain that will really cut and somehow he ended up with a different chain? Our local dealer is sort of not functioning ,so right now they are of no help.