An adjustable wrench trades grip for coverage. One tool fits a range of sizes, and the price is that the moving jaw has play in it, so under load the wrench opens slightly and bears on the corners of the nut rather than the flats. That play is inherent in the design rather than a sign of a worn or cheap wrench.
That is why an adjustable wrench is used where the right spanner is not to hand rather than as a first choice. Keeping the jaws tight against the flats before applying force is what limits the damage, and pulling towards the fixed jaw rather than the moving one is the other half. It is also why an adjustable wrench is checked and reset partway through a stubborn fastener rather than pulled harder.
A pliers wrench works differently. Its jaws stay parallel through their travel and grip by leverage rather than by a screw setting, which means they hold a nut across the flats without marking it. That makes it usable on a chromed or finished fitting where an adjustable wrench would not be. Parallel jaws also grip a round section, which an adjustable jaw does at only two points.
Length runs 160mm, 208mm, 258mm and 307mm on the reversible wrenches and from 100mm on the pliers wrenches. A three leg oil filter wrench at 69 to 136mm sits on the same leaf. Send the fitting to 07754288583 on WhatsApp. Jaw capacity is stated per wrench alongside the overall length. Reversible bodies let the wrench be turned over without resetting the jaw opening.
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