Tongue-and-groove pliers are a type of slip-joint pliers. They are also known as water pump pliers, adjustable pliers, slippy pliers, groove-joint pliers, arc-joint pliers, Multi-Grips, tap or pipe spanners, gland pliers and Channellocks (i.e., Channellock brand 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. The weight of the tool can also vary, depending on the material used.
Due to the increasing compactness of components and machines the workspace becomes more confined. However, the requirements on the gripping force and capacity of the tools do not decrease on the other hand. KNIPEX-"Cobra" ES allows powerful gripping in confined areas.
Description:
- Ideal for service, maintenance and equipment repair, in automotive and general industry
- Long, narrow jaws
- Particularly good access to the workpiece due to very slim construction of head and joint area
- Firm grip also on flat material due to three-point rest
- Push the button for adjustment on the workpiece
- Fine adjustment for optimum adaptation to different sizes of workpieces and a comfortable handle width
- Self-locking on pipes and nuts: no slipping on the workpiece and low handforce required
- Box-joint design for high stability due to double guide
- Reliable catching of the hinge bolt: no unintentional shifting
- Favourable lever action: optimum transmission of force
- Guard prevents operators’ fingers being pinched
- Chrome vanadium electric steel, forged, multi stage oil-hardened
Atramentizing is a corrosion protection process in which steel is coated with phosphate using a zinc phosphate solution at 90° C (194° F).
Technical Parameters:
| Length | 250 mm | Weight | 0.328 kg | |
| Capacity inch | 1 1/4" | Pliers | Grey atramentized | |
| Capacity mm | Ø 37 mm | Head | Polished | |
| Capacity wrench size | 42 mm | Handles | Multi-component grip | |
| Adjustment positions | 19 | Product code | 87 51 250 |
technical change and errors excepted
