>>48249014See anon, there's nails and pliers in this method.
By hitting the naile, once grown enough, at the right angle using the sharp side of the hammer, you can bring the metal to separate the keratinous layer and the flesh of the finger, which are normaly fused. Since the nail is not flat, you apply physical trauma to create bubbles of plastic deformation where the nail will break and deform, making the process that much more painful and gory, but ultimately easier.
Then, you have to take the still innerved shards one by one and pull them out quick.
The body usually have a natural strength limiter when it comes to self harm, but with enough menhera, you never know. This strength limiter prolongs the process, making it more agonizing and gruesome.
The trauma must have fractured some of her phalanges as well.
