What are slip joint pliers also known as?

• A. Tongue and groove
• B. Needle nose
• C. Flat nose
• D. Crimping

Answer: (A)

Slip joint pliers are commonly referred to as tongue and groove pliers. This name arises from the design of the pliers, which features a set of grooves or "teeth" that allow the jaws to adjust to different sizes of objects. The unique feature of slip joint pliers is the adjustable pivot point that enables the user to change the position of the jaws, providing versatility in gripping various shapes and sizes. This design is particularly useful for tasks that require a firm grip on items like pipes or nuts and bolts, making them a staple tool in plumbing and general maintenance applications. Other names like needle nose and flat nose refer to different styles of pliers that have distinct shapes and uses, while crimping refers to a specific application rather than a type of design found in slip joint pliers.