I did some microwave xformers today. 65lbs @ $0.20/lb = $13
Extricated the copper = 12lbs @ $2.70/lb = $35. So... $6.50 for shred + $35 is way better than $13. Took about an hour.
If I had that many and as winter is coming I would do as you say and widdle away at em. Happy copper harvesting!
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