RIDGID 31090 Model 810 Aluminum Straight Pipe Wrench, 10-inch Plumbing Wrench Professional strength aluminum wrench is nearly 40% lighter than comparable same-size heavy-duty models with the same durability and ease of use Features an I-beam handle with full floating forged hook jaw for superior gripping and quick adjustments Plumbing wrench has self-cleaning threads with easily replaceable hook jaw, heel jaw, and spring assembly Straight pipe wrench is suitable for all forms of pipe work 10-inch (250 mm) pipe wrenches are ideal for pipe diameters of 1/4 inch (6 mm) to 1 inch (25 mm) with a pipe capacity of up to 1-1/2 inches (40 mm)