These 250mm Knipex SmartGrip water pump pliers feature automatic adjustment for easy workpiece gripping. The slim design allows for excellent access. Constructed from chrome-vanadium electric steel, these pliers are forged, oil-hardened, and tempered for durability. They are grey atramentized with a polished head and feature non-slip plastic coated handles. The pliers are self-locking on pipes and nuts, preventing slippage and requiring minimal hand force. They have gripping surfaces with specially hardened teeth for wear resistance and stable gripping. The box-joint design provides high stability through a double guide, and a guard prevents finger pinching. A locking lever allows for space-saving transport with the handles reliably closed. Pipe capacity is up to 32mm diameter and nut capacity is up to 36mm.