Skip to main content
Loading YT Video
Quality — Made in Germany
KNIPEX 87 21 250 Cobra® QuickSet Hightech-Wasserpumpenzange
KNIPEX 87 21 250 Cobra® QuickSet Hightech-Wasserpumpenzange
KNIPEX 87 21 250 Cobra® QuickSet Hightech-Wasserpumpenzange
KNIPEX 87 21 250 Anwendung
KNIPEX 87 21 250 Anwendung
KNIPEX 87 21 250 Anwendung
KNIPEX 87 21 250 Cobra® QuickSet Hightech-Wasserpumpenzange
KNIPEX 87 21 250 Cobra® QuickSet Hightech-Wasserpumpenzange
KNIPEX 87 21 250 Cobra® QuickSet Hightech-Wasserpumpenzange
KNIPEX 87 21 250 Anwendung
KNIPEX 87 21 250 Anwendung
KNIPEX 87 21 250 Anwendung

87 21 250
KNIPEX Cobra® QuickSet
High-Tech Water Pump Pliers

  • Fully open, push, grab!
  • Additional fast adjustment on the workpiece by sliding the pliers handle
  • Combines the proven, reliable locking of the hinge bolt with an additional push function which makes it easier to work in very confined and inaccessible areas
  • The adjustment directly on the workpiece is possible by simply sliding the pliers handle
  • Reliable locking of the hinge bolt with the first workload. The gripping width of the pliers is then fixed and can only be adjusted by pressing the button.
  • To re-activate the sliding function, the hinge bolt must be released by pressing the push button and the pliers must be completely opened again
  • Self-locking on pipes and nuts: no slipping on the workpiece and low handforce required
  • Gripping surfaces with special hardened teeth, teeth hardness approx. 61 HRC: high wear resistance and stable gripping
  • Box-joint design for high stability due to double guide
  • Pinch guard prevents operators' fingers being pinched
Technical attributes
Article No.
87 21 250
grey atramentized
with non-slip plastic coating
335 g
250 x 59 x 20 mm
DIN ISO 8976
REACH compliant
does not contain SVHC
RoHS compliant
not applicable
Adjustment positions
Capacity for pipes, inches (diameter)
Ø 2 Inch
Capacities for nuts
46 mm
Capacities for pipes (diameter)
Ø 50 mm

The high-tech water pump pliers with fast adjustment

Adjust directly on the component using slide function

The benefits of working with the Knipex Cobra are plain to see: these water pump pliers are light and stable, thanks to the unique QuickSet technology can be adjusted as quick as a flash on the component and are self-locking on pipes and nuts. The QuickSet function supplements all proven properties of the Knipex Cobra, adding a slide function for easier working in very confined and inaccessible places.

Grip quickly, adjust finely

For pipes, nuts, sleeves, for various kinds of components: slide the Knipex Cobra QuickSet open completely, place the upper jaw on the component and push the lower handle of the pliers up the component. The spring-loaded hinge bolt locks securely into place and can only be moved again by pressing the QuickSet button. Thanks to the 25-fold fine adjustment, the Cobra QuickSet can be ideally adjusted to different sizes of the component. This fine adjustment also makes sure that the distance to the handles remains hand-friendly for every opening width.

The Knipex Cobra QuickSet clamps onto the component securely by itself thanks to the jaw geometry developed by Knipex. This means the user can put all energy into the desired movement without pressing the pliers handle together – and thus without energy loss: round components can be turned, bolted connections tightened and released.

Tough and strong

We forge the Cobra QuickSet from chrome vanadium steel and use a multiple stage hardening process to give it the ideal balance between hardness and toughness. This makes it extremely durable. To achieve a lasting secure “bite” on the work component, we use high-frequency current to bring the gripping teeth to a hardness of approx. 61 HRC.

The Cobra QuickSet is further stabilised by the box joint design. Unlike pliers with mounted joints, no tilting forces arise when under strain. The handles stabilise each other in the joint.

Brief overview

Modern high performance water pump pliers

25-fold fine adjustment simply by sliding, for quickly adapting the tool to different sizes of component

Large grip width (up to a wrench opening of 46 mm / pipes up to 2 inches) with low weight (335 g)

Gripping teeth hardened to approx. 61 HRC using high frequency for a secure grip and a long service life

Grips flat, round and angled components

High level of user comfort due to constant hand-friendly gripping position resulting from fine adjustment

Handles coated with non-slip plastic

Chrome vanadium electric steel, forged, oil hardened

Self-locking on pipes and nuts

Knipex Cobra: several manufacturing steps for high tool quality

Professional users expect a tool quality that will last for many hard years of work. We develop and manufacture our pliers for the most demanding users imaginable: for craftsmen. Every pair of pliers from Knipex is manufactured to the highest standards using the best materials. A purchase for many years of use during assembly work, on the building site, in production and in the workshop.

Cobra QuickSet: fast adjustment on the component at the touch of a button

Press the button – open pliers completely

Position the jaw – simply slide the pliers closed

Hinge bolt locks into place under strain

KNIPEX-App installieren

All variations

87 21 300
KNIPEX Cobra® QuickSet High-Tech Water Pump Pliers
251-300 mm
atramentised / lacquered / burnished
plastic coated
Length: 300 mm
87 22 250
KNIPEX Cobra® QuickSet High-Tech Water Pump Pliers
181-250 mm
atramentised / lacquered / burnished
multi-component grips
Length: 250 mm

Article 87 21 250 in Set

00 18 01 V25
Counter Display 10 parts
10 x 87 21 250
Technical changes and errors reserved.