Quick Opening Function: Self locking wrench is used for quick and effective adjustment, greatly reducing the time of fittings and adjustmentsSturdy Structure: Adjustable pipe wrench is made of quality alloy steel material, wear resistant, strong, not easy to damage, and can be used for a long timeSelf Adjusting Wrench: Designed according to engineering mechanics principles, With tooth on three sides, it has strong force and fastens without slippingSelf Locking Mechanism: Spanner has a unique self locking system to ensure a grip on the pipe, simplifying pipe and heating repairsFlexibility Of Use: The adaptable design of the wrench makes it suitable for a variety of pipe and fitting tasks, both in residential and industrial environments Specification: Total Length 30cm/11.81inch; Opening Range 1.9cm-4.3cm/0.75inch-1.69inch Package Includes: 1Self Locking Wrench Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.