The RIDGID Grip Wrenches are fitted with two handles and heavy-duty jaws, they can handle a multitude of different diameters. Adjust the bolt on the bottom handle to the require size and then it can be locked in place.

RIDGID 1140 Grip Wrench

Length: 215mm (8.1/2in).
Capacity: 20mm (3/4in).
Weight: 0.4kg.