Some of the different jaw shapes available include straight, curved, and C-clamp styles. The brand Vise Grip is a popular manufacture of these types of pliers. Example: Irwin Vise-Grip Fast Release Curved Jaw Locking Pliers. Wire Strippers are a type of pliers with a very specific and limited use. These are design for removing the insulation off of electrical wiring. With different size holes that are graduated in the same size of the wire it takes the guess work out of removing the insulation.