A friend of my wife's was packing up their household to rejoin her husband who took a very good job in another state. They didn't have room for a bunch of tools, so they just gave them away--to us. At first, it was a D-handle Chicago Electric 1/2" drill, a well-used Hilti rotary hammer, and a Craftsman worm drive saw (blade guard says Skilsaw--looks identical to my Skil worm drive). I though that was pretty cool, and felt plenty blessed by that. Then, a few days later, the friend made some more moving-truck/personal vehicle space-saving decisions, and my wife came home with our minivan just about FULL of tools:
tools.jpg
Among the miscellany, I came across the following tool, which I have never seen before, and wondered what it was:
mysterytool.jpg
The hook-like bit has a sharpened, triangular profile, with a ball on the end, and there were about 20 more of the bits stored in the handle. Any ideas, SMC?