Our ductile iron blade is of professional quality. It’s for the contractor tired of dealing with an inferior product.The ductile iron blade is the diamond blade that started the revolution. Before the ductile iron blade was introduced a few years ago, pipe cutting was better left to abrasives. With our unique segment mixed specifically for the pipe and the electroplated diamond dust in a swirl pattern on the blank of the blade creating a deburring action, the ductile iron blade does the job. In the past few years there have been many copies of this diamond blade but the imitations simply don’t measure up. Don’t be fooled. This is the original. When you hold this blade in your hands you will realize the difference right away. Cuts ductile iron, schedule 40 carbon steel, culvert pipe, concrete pipe, commercial grade pvc & cured concrete.