Oregon® pioneered Diamond Chain Technology™ so that professionals and homeowners have tools that will cut through the toughest stuff ever made. Their concrete-cutting diamond chains are designed and manufactured in Portland, Oregon. Their revolutionary SealPro and Seal Pro Advanced anti-stretch technologies significantly reduce chain stretch, so you spend less time tensioning your chain. Their patented PowerGrit pipe cutting chain allows you to safely cut ductile iron, HDPE, PVC, and more. All of their diamond chains can be used with our best-in-class guide bars and powerheads to give you a cutting system that can plunge cut up to 25 inches deep with clean corners and no overcuts.