Sometimes when you're cutting keys, the original key may have deeper than normal grooves/cuts.
If the grooves are too deep, the key cutting machine you're using may not be able to replicate the exact same cut.
To get around this, you can use key lifts to lift the keys up closer to the blade to ensure a deeper cut and a much more accurate copy of the original.
This video will show you how to use key lifts to lift the key closer to the blade of your key machine. This helps cut those deeper grooves which are needed to be cut in order for the copy to work.
If you're in need of some key lifts, click here!