I've recently had a whole bunch of times where I could have used a tool which I can imagine and try to describe but not name. It would be sort of like a protractor with legs except it needn't have any degrees marked anywhere. I'm just thinking of 2 long (like 24") legs, each quite straight, with a nicely made joint at one end so they can be formed into a V of any angular dimension. To use them, I'd set them using one of my protractors but then just use them as a gage. They would be very handy when bending pipe to a particular angle, or fitting any kind of pieces together at a specified angle. I could just make up a couple of pieces of 1/8x24" strip and drill/ream holes for a clamping bolt at one end, and round the corners around the holes. But I don't like making tools I can buy - is something like this available?