Roberto
Well-Known Member
I tried some long handled pruning shears the other day, side cut, they would not go through a 12mm rope, I think the anvil type would, you would need to test it. The local lifeboat used to carry a home made ripper, a stainless knife blade welded to a pole, with a crook welded to the blade rather like the top of a number 1, if the blade were serrated that would be ideal. (It could all be drilled and bolted rather than welded)
like this perhaps