Introduction: DIY - How to Make a Spare Key From Soda Bottle
The tension wrench provided by http://www.avoidlockedout.com. this is my first prototype of plastic spare key, it works. From a soda bottle to the Ultimate product, please go to https://www.instructables.com/id/How-to-make-a-plastic-spare-key-copy-a-key-in-minu/
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