In case you make a typo on your GRAPHENE, you can mark the wrong embossing by punching a second hole right next to it. This way it is easy to recognise and you can't mistake it for a 'valid' punched hole. You can then punch the correct hole.
If needed, you can also buy a new bottom plate in our webshop: https://shop.ngrave.io/products/extra-graphene-lower-plate