Types of Pliers – Joint Type

by Andy on May 6, 2013

Tongue and Groove PlierAfter you choose your plier jaw then joint type is typically next on the list. Picking out the proper joint type is important, as it greatly affects the performance of your pliers. The three main types of plier joints are rivet, box, and tongue and groove.

Rivet joints are the most basic type, consisting of a metal pin or bolt that holds the two sides of the pliers together and providing a fulcrum for them to pivot around. This type of joint is cheaper than most, as it is easy to make but does not hold up to high strain situations.

Box joints offer more strength at a slightly higher price. These joints are made by making a hole in one side of the pliers and having a peg that is attached to the other side pushed into it. Because the fulcrum is a part of the plier it is stronger than rivet joints, allowing you to work on projects with high load or strain levels.

Lastly, tongue and groove pliers have an adjustable joint, allowing you to change the jaw opening size. This allows you to use one set of pliers for a wide range of situations, without the handle getting wider. Tongue and groove pliers can be made with either a rivet or a box joint as the fulcrum, so look at which is used to see if they can be used in high strain situations.

Do you have any more questions on types of plier joints? Leave a comment below, or call Customer Service at (800) 537-0351 today!

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