Pliers
There are certain tools that every toolbox should have, and pliers are one of them. Since different types of pliers are designed to handle different jobs, it is likely that you will want to have more than one pair on hand. While some types provide tremendous versatility, others are used for highly specialized tasks. If you haven't taken a moment to peruse the immense selection of pliers available, you may be surprised at the breadth of options. Consider the following questions as you shop to find the right type of pliers to help you handle a wide variety of tasks:
Fixed vs. Adjustable Pliers, Design
One major difference in the design of pliers is whether they are fixed or adjustable. Fixed pliers open to a set width while adjustable pliers offer the flexibility to accommodate varying widths. Generally speaking, pliers are designed for holding, turning and cutting tasks. They are often used for working with wire or other electrical applications as well as tightening and loosening nuts and bolts, working with jewelry, removing nails and a host of other functions. As with any tool, knowing how to properly use a pair of pliers will promote both safety and efficiency.
Fixed vs. Adjustable Pliers: All pliers feature a fairly similar design with three main components. Handles are used to grip the pliers, a pivot allows the jaws to open and the head grips or cuts whatever you're working on. Pliers are designed to transfer the power of your grip from your hand to a more precise point. Fixed, or solid-joint, pliers have a rivet attached to the pivot that allows them to open only to a set width. They may have long, short or curved noses and can be used for a wide range of tasks. Adjustable pliers, also referred to as slip-joint or channel pliers, offer two or more widths to accommodate a wider range of tasks. Though they feature a few different designs, each of them allows you to lock the pliers in at a given width to match the task at hand.
Types of Pliers: There's a pair of pliers out there for nearly every task. Consult the chart below to learn about some of the more common types, their main features and typical uses.
Usage: While pliers can be used to turn nuts, it's best to use them for this purpose only in an emergency. Some pliers' designs may round off the corner of a nut, which can make it extremely difficult to remove later on. Remember that not all pliers are designed for electrical work. If you plan to use your pliers for such applications, make sure the handles are insulated to protect you from electrical shocks. Protect polished pipes by wrapping a cloth around them prior to gripping with a pair of pliers.
Features
Rust-Resistant Finish: If you want your tools to stand the test of time and be in good working condition every time you need them, look for pliers with a rust-resistant finish.
Handle Hole: Pliers with holes on the handles allow you to tether them or hang them up on a hook, making it much easier to keep track of them when they're out of your toolbox.
Built-In Wire Cutter: Some pliers, such as locking pliers, may feature a built-in wire cutter that expands their versatility.
Insulated Handles: If you plan to use your pliers on electrical wiring, make sure the handles are insulated to protect against shocks.

