1 Pcs High Quality Tongue & Groove Pliers Also Known As Water Pump Pliers 12" Size It is forged by high-carbon steel, and the tong head is treated by heat. The injection moulding handle is comfortable.
Tongue-and-groove pliers—also known as water pump pliers, adjustable pliers, groove-joint pliers, arc-joint pliers, Multi-Grips, tap or pipe spanners, gland pliers and Channellocks (i.e., Channellock brand pliers)—are a type of slip-joint pliers.
They have serrated jaws generally set 45 to 60 degrees from the handles. The lower jaw can be moved to a number of positions by sliding along a tracking section under the upper jaw. An advantage of this design is that the pliers can adjust to a number of sizes without the distance in the handle growing wider. These pliers often have long handles—commonly 9.5 to 12 inches long—for increased leverage
Tongue-and-groove pliers are commonly used for turning and holding nuts and bolts, gripping irregularly shaped objects, and clamping materials.