Ideal for professionals in the plumbing, pipe fitter, oil and gas, fire and sprinkler and MRO industries, Crescent has the right pipe wrench for the job. The new line boasts 11 products, including 10” cast iron and aluminum straight pipe wrenches, 12” self-adjusting wrench, 18” cast iron  and aluminum straight pipe wrenches and more. Crescent’s patent-pending K9 Angle-Access Jaws bite in an arc of 30 degrees — much greater than typical pipe wrench operation limits — for best-in-class access in tight spaces. The aluminum options are more than 40% lighter than cast iron to reduce user fatigue, while the steel self-adjusting pipe wrenches feature a ratcheting head for one-handed use. Crescent Tool.