The high-tech water pump pliers — grip quickly, adjust finely. The benefits of working with the Knipex Cobra are plain to see: these water pump pliers are light and stable, can be adjusted on the component quickly at the touch of a button, and are self-locking on pipes and nuts.
For pipes, nuts, sleeves and various other components, the professional user applies the Knipex Cobra quickly and accurately with just one hand movement. The spring-loaded hinge bolt locks securely into place without adjusting inadvertently. Thanks to 25-fold fine adjustment, the Cobra can be ideally adjusted to different sizes of component, and this fine adjustment also ensures the distance to the handles remains hand-friendly at every grip width.
The Cobra is further stabilised by its box joint design — unlike pliers with mounted joints, no tilting forces arise when under strain, and the handles stabilise each other in the joint. The jaw geometry developed by Knipex clamps onto the component securely by itself, so the user can put all their energy into the desired movement — turning, tightening or releasing — without pressing the handles together and losing energy in the process. Using two Cobras together is ideal for counter screw joints.
Forged from chrome vanadium steel and hardened through a multiple-stage process, the gripping teeth are additionally induction hardened using high-frequency current to a hardness of approximately 61 HRC for a lasting, secure bite.
Stepping up from the 180mm model, the 250mm Cobra gives significantly greater capacity — up to 46mm nuts and 2" pipe — while staying genuinely lightweight at 335g. Using two Cobras together for counter screw joints is a practical technique worth knowing, letting one plier hold a fitting steady while the other applies torque, without either slipping.
Order the KNIPEX Cobra® High-Tech Water Pump Pliers, 250mm online today.
| Brand | Knipex |
|---|---|
| Part No. | 87 01 250 |
| Pliers Finish | Grey Atramentized |
| Head | Polished |
| Handles | With Non-Slip Plastic Coating |
| Teeth Hardness | Approx. 61 HRC (Induction Hardened) |
| Weight | 335 g |
| Dimensions | 250 x 44 x 14mm |
| Standard | DIN ISO 8976 |
| REACH Compliant | Does Not Contain SVHC |
| RoHS Compliant | Not Applicable |
| Adjustment Positions | 25 |
| Capacities for Pipes (Diameter) | Ø 50mm (2") |
| Capacities for Nuts | 46mm |
