What are four types of pliers?

Four common types of pliers are slip-joint pliers, which have adjustable jaws for gripping various sizes of objects; needle-nose pliers, designed for precision work in tight spaces; cutting pliers, used for cutting wires or small materials; and locking pliers, which can be locked in place to hold objects securely. Each type serves specific functions, making them essential tools in both professional and DIY settings.