I am seeing these things discarded everywhere. Parking lots, along the road, in street gutters, the grass lawn of the city park. Think about where they’ve been before becoming litter.
Would they be classified as a biohazard?
this is the best I could do on that chisel I found.
The edge still has one nasty nick in it but the rest I was able to remove.
It will be useful for various jobs not necessarily for what it was intended for.