What part of the hammer acts as the hammer acts as the fulcrum when the hammer is used to remove nail?

When a hammer is used to remove a nail, the part that acts as the fulcrum is the curved claw of the hammer, which pivots against the surface of the material (like wood) where the nail is embedded. As the hammer is lifted, the nail is pulled out from the opposite end, leveraging the claw's position to exert force on the nail. This lever action allows for efficient removal with minimal effort.