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Tongue-and-groove pliers
Tongue-and-groove pliers
Licensed under Creative Commons Attribution-Share Alike 3.0 (Chianti).
Tongue-and-groove pliers are a type of slip-joint pliers. They are 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).
Design
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.[1][2][3]
Uses
Tongue-and-groove pliers are commonly used for turning and holding nuts and bolts, gripping irregularly shaped objects, and clamping materials.
History
This design of pliers was invented and popularized by the Champion–DeArment Tool Company in 1934 under the brand name Channellock (after which the company was later renamed)[4] but are also now produced by a number of other manufacturers.
Gallery
| Wikimedia Commons has media related to Tongue-and-groove pliers. |
- ^ US 2592927
- ^ US 4890519
- ^ "Common Maintenance Tools and Their Use: Water-Pump Pliers and Groove-Joint Pliers". Aviation Boatswains Mate E - Aviation theories and other practices. Retrieved 2010-03-29.
- ^ US 1950362
This article uses material from the Wikipedia article "Tongue-and-groove pliers", which is released under the Creative Commons Attribution-Share-Alike License 3.0. There is a list of all authors in Wikipedia
