They feature a ductile-iron housing, I-beam handle, full floating forged hook jaw, knurled adjustment nut, large flange to prevent inadvertent nut rotation, and extra-large self-cleaning threads. They are designed for demanding pipe work and comply with federal specifications GGG-W-651 Type II heavy-duty adjustable standards.

The heavy-duty straight pipe wrench line covers nominal sizes from 6 to 60 inches (150 mm to 1,500 mm) with pipe capacities from 3/4 to 8 inches (20 mm to 200 mm), depending on the model. Choose the wrench size that matches the pipe diameter for best performance.

Yes, the wrenches use replaceable, twice-hardened alloy steel jaws with a precision-milled, biased tooth design to maximize gripping strength and tool life.

Maintain a visible gap between the hook jaw shank and the workpiece so both heel and hook jaw teeth can grip properly. If the hook shank contacts the pipe, gripping action is reduced and slippage or jaw failure can occur.

Select based on pipe diameter and follow suggested ranges; for example, 14" wrenches (350 mm) are typically suited for 1/2" to 1-1/2" (15 mm to 40 mm) pipe , 24" (600 mm) for 1-1/2" to 2-1/2" (40 mm to 65 mm) pipe, and 60" (1,500 mm) for 3" to 8" (80 mm to 200 mm) pipe.