What is the piece of metal that strike clavichord strings called?

The piece of metal that strikes the strings of a clavichord is called a "tangents." These tangents are small metal blades that not only strike the strings to produce sound but also remain in contact with them, determining the pitch by their position along the string. When a key is pressed, the tangent rises to strike the string, creating a tone that can be modified by the player’s touch.