Concrete Joint Cutter - Ninja Joint Cleaning Blades

Cleaning out expansion joints and control cuts before sealing requires specialized blades that remove debris without damaging concrete edges. The Diamond Products Ninja Joint Cleaning Blades mount to standard walk-behind saws and feature a unique blade design that pulls out old sealant, dirt, and vegetation from joints. These blades work in both fresh and aged concrete, creating clean vertical walls ready for new sealant application. The Ninja system reduces prep time compared to manual wire brushing or grinding while maintaining consistent joint depth throughout the cut. Each blade handles the abrasive conditions of joint maintenance without premature wear. Built for concrete contractors and maintenance crews who need to restore deteriorated joints in parking lots, warehouse floors, and pavement sections.