At work one of our supersize garage doors gave up. It seems one of the lift springs broke.There are four of them on a rod. They"re about 3/8" diameter in a coil about 5" across and 3' long. Boss told the repairmen to replace them all and told me I could be the proud owner of all the old coil springs. Has any body out there worked with coiled spring. I've heated a short peace up and uncoiled it, want to try and make a set tongs. Any input appreciated.