thanks for all the post guys. several mentioned using a saw to go up the rib cage. I assume this is at the chest area. I use knife here also. I find the bottom of the sternum, and move off to the side alittle. The ribs are attached with cartlige here, and the knife goes thru easily. Go up both sides of the sternum, bend over to break the bone, and cut off with the knife. make alot easier to get to the wind pipe and lung diaphram. thanks again.