Tongue-and-groove pliers Knipex 87 51 250

The Knipex 87 51 250 tongue-and-groove pliers ("Cobra" ES) are designed for powerful gripping and turning in confined workspaces. With a length of 250 mm and a maximum pipe capacity of 32 mm, these pliers combine slim head and joint construction with a robust box-joint design to deliver stability and reliable force transmission for service, maintenance and equipment repair tasks.

Advantages

These adjustable pliers provide a firm three-point grip on round and flat materials and feature fine adjustment via a push-button for quick, secure setting on the workpiece. The self-locking action on pipes and nuts reduces hand force and prevents slipping, while the guard reduces the risk of pinched fingers. Manufactured from chrome vanadium electric steel and oil-hardened, the tool offers high stability and dependable catching of the hinge bolt to avoid unintentional shifting.

Suitable for

• Service and maintenance work
• Automotive repair and general industry tasks
• Plumbing and pipe installation up to 32 mm diameter
• Gripping and turning nuts up to 34 mm across flats

Key specifications

• Brand: Knipex
• Model / MPN: 87 51 250
• Length: 250 mm
• Weight: 328 g
• Maximum pipe capacity: 32 mm
• Maximum nut size (across flats): 34 mm
• Material: Chrome vanadium electric steel, forged and oil-hardened
• Design features: long narrow jaws, box-joint, push-button fine adjustment, three-point rest, self-locking
• EAN: 4003773061267

How to use

Select the appropriate jaw opening by pressing the push-button adjustment and sliding the lower jaw until it matches the workpiece size. Position the pliers so the three-point rest contacts the material for a firm grip, then apply force through the handles; the self-locking mechanism will help maintain hold on pipes and nuts while reducing required hand effort. Release by opening the handles and, if necessary, readjust the jaw using the push-button for the next grip.

Usage recommendations

Inspect the pliers regularly for wear, keep the joint clean and lightly lubricated, and avoid using the tool on live electrical circuits. Use the tool only within the specified pipe and nut sizes to prevent damage to the jaws.