TOOLS & EQUIPMENT SERIES 21: Music to Your Ears A Surprising Option For Unlocking Stuck Machines

I was in a music shop with friends and while waiting for them to browse, I got bored and started glancing at the shelves of accessory products and found this! While it was not invented nor marketed for use on sewing machines, it actually works wonders for loosening old sewing machine oil and varnish. Oh, and no music lessons required!!

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