The Knipex KPX 87 02 250 Cobra waterpump pliers have automatic adjustment. They can be opened & adjusted directly at the workpiece with one h&. The Cobra pliers close with a push of a button & offer a good strong grip on the workpiece. The integrated spring of the automatic adjustment is shielded in the handles for user safety & the gripping surfaces have special hardened teeth which are hardened to approx. 61 HRC. These Knipex 87 02 250 pliers combine low wear with a secure gripping action. With fine adjustment, that ensures optimum adjustment to differently sized workpieces, user-friendly handle position & a secure catching of the hinge bolt, ensures no unintentional shifting when in use. The box-joint design is high in stability &, because of the double guide, will hold nuts or bolts securely without slipping on the workpiece. This means the minimum hand force is required. These Knipex waterpump pliers have a user friendly guard to prevent the operators fingers from being pinched. The pliers are made from strong chrome vanadium electric steel that has been forged & then oil-hardened for added strength & durability, & have PVC dipped handles for user comfort & a positive grip. Length: 250mm/10 inch. Adjustment positions: 11.