In uk.d-i-y, eden wrote:
I need to dig 5 holes for 1m high picket fence - which of these tools
works most effectively?

Also is concreting them def the best option to do as opposed to packed
gravel/earth?

I see other more knowledgeable replies than I could muster, but...

Is there a reason you couldn't just bash the posts in with a fencing
maul?

--
Mike Barnes