After finding that the BBQ fork material is not stout enough to overcome really stuck sprockets, I resolved to make a pair of irresistible chain whips. Well, I finally got around to it, and here's the result:



The materials are 1/8" steel bar and approx 1" dia. thinwall pipe. The pipe began to split at the edges where it is flattened, so my nephew welded the cracks shut for me. If you're going to buy rather than scrounge the material, I'd recommend mild steel tubing instead of pipe; I think the tubing would be ductile enough to flatten without cracking. You can also anneal the material before flattening it. I did that on the second one I made, and the cracking was less severe.