Enjoy professional-quality cutting performance with the RIDGID 7 in. Metal Cutting Diamond Blade, which is engineered with new V-TECH vacuum brazing technology. The Rigid Metal Cutting blade is the next generation blade for faster cutting of metal studs, pipe and angle steel. Rigid Metal Cutting blades do not shrink like abrasive wheels and provide 60X longer life than other abrasive blades. This blade fits 7 in. grinders and circular saws.