Could it be scissors? Scissors are two (pair of) cutting blades pivoted (joined) together.

In Spanish, "las tijeras" means "the scissors." It is a plural noun used to refer to the cutting tool with two blades pivoted in the middle.

Two pivoted metal blades connected through a joint in such a way that the sharpened edges slide against each other and cut the material.

a monitor is pivoted

"Scissors" is typically used as a plural noun to refer to the cutting tool with two blades that are pivoted together. While the term can refer to a single cutting tool in a general sense, it is more commonly used in the plural form.