It’s a great idea to use the old circular wheel - to make a new tool out of it. Due to the fact that on each clove of the disk there is a hard alloy soldering, they all represent value.
In order to use the disk to the maximum, you need to mark and grind it with a grinder so that there is a point on each resulting part. On chopped stripes you can plant wooden choppers as a handle.
It turned out a large number of the same tool, which can be used for cutting certain materials or as a drawing tool for metal. Soldering at the end of the torch is easy to sharpen and will serve such a tool for a long time, and extra torches can be presented to friends.