I have had this Robin Brush cutter Model NB26 for quite a few years now. Great running machine. A few years ago I busted the string trimmer attachment. I then put on the blade. Now I don't need the blade and want to go back to the string trimmer attachment. BUT! I can't find any dealers here in Houston anymore. Robin is no help at all. ( won't answer my inquiries) Anybody know a site that handles Robin equipment and parts?