Hi from Australia
I have an Atom edger (made in Australia) and really like it. One can buy 2 stroke or 4 stroke models. I have a 2 stroke model. I do not know if Atom edgers are available in the USA. Should be if they are not.
One of my customers got me to use her STAR brand edger once when I forgot my Atom. Yuk taught me I don't forget my Atom anymore.