Gripping pliers
Lineman's pliers (combination pliers)
Flat-nose pliers (duckbill pliers) With long, narrow, flat jaws, they are stronger than needle-nose pliers, but less able to reach into really confined spaces
Round-nose pliers (snub-nosed pliers)
Needle-nose pliers (long-nose pliers, snipe-nose pliers) which have long, narrow jaws for gripping in confined spaces Locking pliers (vise grips, mole grips)
Tongue-and-groove pliers (Channellock pliers)
Parallel pliers which have jaws (usually smooth) which come together in a completely parallel motion, as opposed to regular pliers which rotate until contact. This design is intended to increase the surface area on materials the pliers are used on, decreasing pressure and potential for causing indentations.