IDEAL Industries Adjustable Wrench

Four handle lengths: 6 inch (35-019), 8 inch (35-020), 10 inch (35-021) and 12 inch (35-022). Pick the length by the nut you're turning and the space you have, since a longer handle gives more leverage on conduit fittings and large lock nuts while the 6 inch works inside a panel or box.

Yes. The jaw scale carries both standard and metric markings, so you can set the opening to a known size without hunting for a socket. Jaw capacity is described as extra wide for the tool's size.

The head is a narrow profile design specifically to reach into tight spaces, which is what matters when you're working around conduit, gutter, or a loaded panel. In the tightest work the 6 inch (35-019) gives you the smallest swing arc.

The thumbscrew is built to a tight tolerance so it won't loosen or wobble in use, which is the usual failure that rounds a nut. The body is forged steel.

An adjustable like the IDEAL 35-019 through 35-022 covers a range of nut sizes with one tool, which is why it lives in an electrician's pouch for lock nuts, ground rod clamps, and mixed inch and metric hardware. Fixed wrenches or sockets grip on more flats and are the better choice for high torque or repetitive production work. Many crews carry an 8 inch adjustable for general use and fixed tools for the sizes they hit every day.

If you're standardizing, the 8 inch (35-020) and 12 inch (35-022) cover most of the work between them: the 8 inch handles box and fitting lock nuts in confined space, the 12 inch gives the leverage for larger conduit hardware. Add the 6 inch (35-019) for panel interiors and the 10 inch (35-021) if you want a single all round tool.