the little manhole lid is what i first started banging on metal with. it didnt work very well but i managed to make a couple of rr spike knive. my uncle used to work for tacoma rail and gave me a bunch of spikes, busted knuckle pins etc along with this 24 inch of rail which im guessing weighs around 70-80 lbs. i just set it up temperarely until i get a big round or some 4x4's and i was thinking about making the manhole lid into a swage block type thing.