Pipe pliers Knipex Cobra 400 mm, model 87 01 400, adjustable PVC/grip

Knipex Cobra 400 mm pipe pliers are adjustable pliers engineered for gripping, turning and holding pipes, fittings and fasteners. With a 400 mm overall length they provide extended reach and improved leverage for plumbing, assembly and repair tasks. The tool incorporates a fast-adjusting slip-joint mechanism that allows quick, single-handed width changes and serrated jaws that ensure a secure grip on PVC and metal surfaces while minimising slippage.

Advantages

The pliers combine an ergonomic handle profile with robust steel construction to deliver reliable torque and durability under frequent use. The slip-joint adjustment enables rapid adaptation to different diameters without the need for separate sizing steps, and the serrated jaw geometry ensures stable contact with round and flat workpieces. The extended length increases mechanical advantage, making it easier to loosen or tighten connections in confined spaces.

Suitable for

• Gripping and turning PVC and metal pipes
• Holding fittings and fasteners during assembly or repair
• Plumbing installation and maintenance
• Workshop and site repair tasks requiring extended reach

Key specifications

• Overall length: 400 mm for increased leverage and reach
• Type: adjustable pipe pliers with slip-joint mechanism
• Jaw design: serrated gripping surfaces for secure hold on PVC and metal
• Adjustment: quick, single-handed width change between jaw positions
• Material: hardened tool steel for durability and wear resistance
• Handle: ergonomic profile for improved grip and control

How to use

Select the appropriate jaw position using the slip-joint adjustment, then place the serrated jaws around the pipe, fitting or fastener. Apply steady pressure to the handles to secure the grip and use controlled turning motions to tighten or loosen the component. For repeated adjustments, slide the pliers to the next jaw position and re-seat on the workpiece. Maintain a firm hold and avoid sudden extreme force to prevent damage to the tool or the workpiece.

Usage recommendations

Use the pliers primarily for pipes and fittings compatible with serrated jaw contact. Avoid using on delicate finishes or soft plastics without protective padding to prevent surface marks. Regularly inspect the jaws and pivot for wear, and keep the slip-joint mechanism clean and lightly lubricated to ensure smooth adjustment and long service life.