Klein Tools 3239 Adjustable Spud Wrench, 16-Inch, 1-5/8-Inch, Tether Hole

The jaws on the Klein 3239 open to 1-5/8 inches (1.626 in / 4.1 cm), which covers heavy nuts and bolts up to 1 inch. That extra-wide opening is the reason ironworkers and electricians carry one of these instead of a handful of fixed-size wrenches.

Yes. The 3239 has a designated lanyard hole worked into the tool, and Klein lists it as compatible with the Cat. No. TT1 tether. That is what makes it usable on a steel job or an elevated electrical install where dropped-object rules apply. The tether itself is a separate purchase.

A spud wrench does two jobs. The 3239 has adjustable jaws on one end, and the 16-inch handle runs in a continuous taper to a point so you can drive it through misaligned bolt and rivet holes and pull the connection into line. A standard adjustable wrench only turns fasteners. If you are setting steel, hanging strut, or bolting up equipment frames where holes rarely line up on the first try, the tapered handle is the reason to buy this one.

Overall length is 16 inches (40.6 cm), height 3.32 inches (8.43 cm), width 0.79 inches (2 cm), and it weighs 2.36 lbs. That is a full-size tool meant to hang off a belt or a tether rather than live in a pouch, and the length gives you real leverage on 1-inch hardware.

No on both counts. Klein's warnings for the 3239 are explicit: do not push or hammer the wrench, and do not extend the handle length. Cheater bars overload the adjustable jaw mechanism and striking a non-struck tool risks chipping. Approved eye protection should be worn when using it. If you need to hammer a connection, use a struck tool made for it.

Order Klein Tools catalog number 3239. That is the 16-inch adjustable spud wrench with the 1-5/8 inch jaw capacity and the tether hole. Klein also builds spud wrenches in other lengths and jaw sizes, so quoting 3239 is what keeps you from getting a smaller-capacity model.

Forged in the USA from select 8640 alloy steel, with a black oxide industrial finish on the handle that resists corrosion. Black oxide is a conversion coating, not a heavy plating, so on long outdoor exposure a light film of oil is still worth keeping on it.

The jaws are precision-machined, individually matched and hand-assembled, and the knurl turns smoothly for adjustment. That hand-fitting is what keeps the jaw from binding or rocking on a nut when you are cranking on 1-inch hardware one-handed at height.