I inherited this odd tool and I can't find out what it's for or where it came from. I thought it was a finger tip driven tiny drill until I looked closely at the "bits" and found they are not drill bits at all. They are more like hardened wires of different gages with each one knurled near one end. Almost like they are used to fine tune or clean same-sized holes for some reason. The knurling is proud of each sized wire and would scrape a like sized hole for some reason. Any ideas?
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