A handy addition to any toolbox, the RIDGID 31100 Model 818 Straight 18-Inch Aluminum Pipe Wrench is a plumbing wrench that offers professional strength and quality in a convenient, lightweight tool. Nearly 40 percent lig...

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Product Review

A handy addition to any toolbox, the RIDGID 31100 Model 818 Straight 18-Inch Aluminum Pipe Wrench is a plumbing wrench that offers professional strength and quality in a convenient, lightweight tool. Nearly 40 percent lighter than comparable iron models, it delivers the unsurpassed durability and ease-of-use that all RIDGID heavy-duty wrenches are known for.

The aluminum pipe wrench has a sturdy I-beam handle with quickly adjustable full floating forged hook jaw. The jaw features self-cleaning threads and easily replaceable spring assembly, hook jaw and heel jaw for long-lasting use. A non-stick adjustment nut cleans away grime from the hook jaw shank for reliable tool use.

This 18-inch straight pipe wrench is ideal for pipe diameters of 1 inch to 2 inch with a capacity of up to 2-1/2 inches, and is suitable for all types of pipe work.

RIDGID covers its products with a lifetime warranty against defects in material or workmanship for the life of the tool.

Since 1923, RIDGID has remained the symbol of certainty to dedicated professionals of the expert trades. Every tool that bears the RIDGID brand is engineered to the same high standards of quality, strength and endurance, as was that first heavy-duty pipe wrench more than 80 years ago.



  • 18" STRAIGHT PIPE WRENCH: Accommodates all forms of pipe work with strength and accuracy with a pipe capacity of 2-1/2 in.
  • FAST AND POWERFUL: Full-floating forged alloy steel hook jaws provide maximum gripping power and quick ratcheting action during pipe adjustment jobs
  • DESIGNED FOR EASE: Features convenient self-cleaning threads and easily and quickly replaceable hook jaws, heel jaws, and spring assemblies
  • DURABLE CONSTRUCTION: Built with high-quality aluminum and an easy to hold I-beam handle to provide long-lasting strength that can withstand heavy-duty and long-term use
  • CONVENIENT LIGHTWEIGHT DESIGN: Weighs only 3-3/4 lbs., making it approximately 40% lighter than heavy-duty models while still offering all the same benefits

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