This adjustable wrench replaces a full set of in. and metric open-end wrenches up to 3 3/8 in. (85 mm), eliminating the need for multiple large, expensive wrenches. It is ideal for gripping, holding, pressing, and bending applications, with an optimized adjustment mechanism that provides a comfortable hand position during use. The smooth, parallel jaws allow infinitely variable gripping across a wide range of sizes and ensure gentle installation of high-quality brass and stainless steel union joints without damaging the surface. Zero-backlash jaw surface pressure protects the edges of sensitive components, while 25 adjustment positions can be selected at the touch of a button directly on the workpiece for quick and precise sizing. A reliable hinge bolt locking mechanism prevents unintentional shifting, and the jaw design enables fast tightening and loosening of bolted connections using the ratchet principle. With a lever transmission ratio greater than 10 - 1, the wrench delivers exceptional gripping power. Forged from chrome vanadium electric steel and oil-hardened for durability, it is built to withstand demanding professional applications.