[nafex] hole digging

[pinewoodel@hotmail.com]

just did an archive search and found nothing relevant.... ive got 200 
holes to dig for trees this spring in our heavy clay. Was able to 
borrow once a Gravely garden tractor with a hole digging attachment. 
Its a rorary drill for planting , digs a hole about 16" wide and 16" 
deep.Its advantage is that it grinds up the clay.   If i had the 
physical stamina and was built like a gorilla i could consider hand 
digging but the clay would come out in spade size blocks, not so nice 
for roots. Graveleys are a heavy duty machine and not every one knows 
they make a hole digger.  However my only other option at present is to 
find a way to attach an old 9" post hole auger i bought to the loader 
of my farmall M tractor ( they don't have 3 pt. hitches).   Has anyone 
seen a post hole auger fited to a loader of a tractor?    I figure with 
this configuration  i could drill multiple holes and break up the 
clay.How do you all dig holes?     minnesota del