It's "forceps are". Some nouns, including forceps, only have a plural form and require a plural form of a verb.

It's "forceps are". Some nouns, including forceps, only have a plural form and require a plural form of a verb.

Where are your forceps?

Where is your forceps?

Follow the same convention with other verbs to say, for example, "forceps have" (not "forceps has").

My forceps have four major components.

My forceps has four major components.

Being a plural noun, "forceps" takes a plural pronoun or determiner (they, them, these, those, etc.).

These are called forceps. You can use them to hold or remove tissue.

Those forceps are too big.

We cannot use the article "a" with this object. However, you can introduce the expression "a pair of forceps". In such a situation, "a pair" refers to a collective noun that takes a singular verb.

There is a pair of forceps in the drawer.

There are a pair of forceps in the drawer.

Follow the same practice with other names of instruments where two components are joined together. Thus, we say "pliers are", "scissors are", "tongs are", or "tweezers are".