I want to cut up a large piece of cast iron (think storm drain cover) with thicknesses greater than 1". What would be the cheapest way to accomplish this? It doesn't have to be a fast method.
Could this be accomplished with:
- A hacksaw with a special blade?
- A 4.5-in angle grinder and then finish the job with an 8-lb sledge hammer?
- A 3-lb hammer, a cold chisel and lots of patience?
The profile of the iron is at most 3 square inches, and is relatively square. I want the cuts to be somewhat precise (I'm not just breaking it up to remove it), but they don't need to be clean.