Fee: £ 1.00 per 7 days
Digs a tidy 16cm hole minimising the Postcrete needed. We found we could do 2 posts per 20kg bag of Postcrete.
Tree roots and stones are a problem for this tool, you will need to shift those obstructions yourself. Once past that and into the clay it will dig the rest of the hole well.
More info here
https://www.screwfix.com/p/spear-jackson-post-hole-auger/3911k