A stupid experiment. Which will no doubt get somebody hurt, as they'll also be too stupid to realize this is extremely dangerous and really absolutely useless as a trimmer. There's a huge chance of that chain coming apart and debris hitting yourself, a bystander, a pet anything. Its too hard on a weedeaters shaft,bearings,clutch, ect. There are a lot of inexpensive options that are a lot safer to use and won't destroy a weedeater...
Com: AC Fox : As it is a good idea, they do sell other attachments that include blades for trimmers.
This is extremely dangerous as one of the links from the chain can come apart due to the centrifugal forces and possibly injure or even kill someone. I recommend just going out and buying the attachment designed for the trimmer.
Com: Darkcorsica: Long Time ago sole parts makee try to sell this low budget gardening store. Thé cutting head was quickly removed from selling bécasse of Many injuries happen spécially using With big torq motor. Very dangerous when thé chaîn hit rocks, small parts throw like a bullet.. your leg and eyes...