the angle grinder is the queen.

She'll eat through concrete, ballast included, as if it were butter and even the most fiercely hardened steel will succumb to her like a big wet fanny. So simple too. A carbon disc rotating at high speed.

You must respect this tool though and take her with a firm and confident hand. A friend of mine lost two toes to one when he got careless in a ditch when we part of a water mains repair team.

I expect SW will want to wax lyrical about shovels now.