eden wrote:
I need to dig 5 holes for 1m high picket fence - which of these tools
works most effectively?

I use one of these - amazing bit of kit. £20 for 5 holes, but you could
sell it afterwards.
http://www.wickes.co.uk/Builders-Too...er/invt/501584

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

Postcrete is the simple & quick answer
http://www.wickes.co.uk/Special-Mort...te/invt/221100


--
Dave - The Medway Handyman
www.medwayhandyman.co.uk