How’s this for recycling?
This set of hoof pincers have been made from a pair of old files or rasps. You can see the ridges of one file in the detailed image below.
They are probably late nineteenth or early twentieth century. I think they show an ingenious use of materials & skill. New tools were probably expensive at the time, and old steel was softer than modern stainless steel. This meant that rasps could wear out – but they could also be worked into a new shape and find a new use.