I have a Toro from Home Depot:
Toro 2-Cycle 25.4cc Attachment Capable Straight Shaft Gas String Trimmer-51978 - The Home Depot
It is a straight shaft and attachment capable. I have the rototiller for it which is aweesome. The unit is about 10 yrs old and I recently had it fail permenatly, I thought. CArberator and tank line gromet. AMAZINGLY in one last ditch effort to revive it I found the whole carb, lines, filters, and tank gromet seal for under $20 and it is pretty simple to make replacement. I have worked it very hard over the years with the rototiller, sliding two 5# dumbell weights over [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse] to ride on rototiller to relieve the downward pressure I have to maintain to keep it deep. Works amazing. Line spool is the bump head and I still have original head but could probably benefit from a new one. It is working fine since "rebuild." IMPORANT NOTE: We should not be ignoring warnings of ethanol in our gas used for small engines like these. The ethanol destroys the carbs, lines, gromets. It IS worth it to go thru the trouble to get the NON-ethanol or RV gas, I believe it is also called; $3/gl here.
DISCLAIMER: I DO NOT NORMALLY SHOP AT HD DUE TO ITS CONTINUED SUPPORT OF THE PERVERSION GROUP. ONLY WHEN LOWE'S, MY FAVORITE, HAS NOTHING SIMILAR.