Impression and bump key Handle

thingiverse

This handy device helps lock in a precise impression of a key by first securing the key firmly into its handle, then carefully applying heat from a lighter to create a sharp, defined mark. Once heated, remove the key, allowing it to cool before using the resulting shape as a robust support for future impressions. This versatile tool also proves useful for bumping keys into submission, where a perfectly crafted impression is followed by a strategic bump that ensures a precise fit every time.