Re: Keel cutter, this is sick!
I have cut up a lead keel. It is soft stuff. Obviously a chain saw works. I discovered the importance of WD-40 and taking it slow when using a skill saw. It will heat up and melt, binding the blade if you are not careful. WD-40 and a carbide tipped skill saw blade go through it like butter. Handling lead is an unappreciated hazard. Lead dust, oxide, fumes etc. are potentially very harmful and long lived. The size of the chips produced using a chain saw might be safer than the smaller particles produced with a skill saw or even a hand saw. Preparing to catch everything is an important bit of preparation for the safety of those doing the work and any innocents who come across it later. Gloves and a respirator.