A hammer or a claw hammer, the 'claw' is used to pull out unwanted or bent nails.
hammer
hammer
For your nails
By system, you mean category.. I'm not sure if you mean finger nails or like tool nails, so I'll give you both. Finger nails: Body parts Tool nails: Hardware
hammer
The hammer is a tool used for driving nails or breaking objects by applying force to the striking surface. It is typically made of wood, metal, or plastic and has a handle for grip and a head for striking.
For your nails
Pincers
A claw hammer is a versatile tool used for driving and removing nails, as well as for general carpentry tasks. The claw on the back of the hammer can be used to remove nails by leveraging and pulling them out. It is a common tool found in most households and workshops.
nail clippers
A tool for removing nails
A tool for removing nails