Hmm, Dyers uses 7/8” shafts on their snout drives.
TBS, BDS, RCD, RBS sells 1.25” shafts
GoodVibes has 1.125” shafts along with “competition” 1.25” shafts.
I hear ya on the china crap but buyer beware with a blower designed for a performance application in which case Dyers falls short on.