What is the function of nock pliers in archery?

Nock pliers are specifically designed tools used in archery for the purpose of installing or removing metal nocking points on bowstrings. These nocking points are crucial because they provide a consistent point for the arrow to rest and nock onto the string, which contributes to accuracy and repeatability in shooting.

Using nock pliers, an archer or bow technician can easily grip, adjust, or affix these small metal components without damaging the bowstring or affecting the tension. This function is essential for maintaining the integrity of the bowstring and ensuring that the nocking point is precisely positioned, which directly influences an archer's performance.

Other options listed either pertain to different aspects of archery equipment or functions that are not related to the purpose of nock pliers. However, nock pliers stand out as a specialized tool tailored for managing nocking points, making choice B the accurate representation of their intended use.