Concrete Joint Cutter - Ninja Joint Cleaning Blades

Cleaning out expansion joints and control cuts before sealing requires blades that can handle debris, old sealant, and compacted material without binding. The Ninja Joint Cleaning Blades from Diamond Products deliver consistent performance when preparing joints for re-sealing on highways, parking structures, and warehouse floors. These specialized blades remove deteriorated joint filler and clean sidewalls to ensure proper adhesion of new sealant materials. The design handles both narrow and wide joint configurations while maintaining straight cuts through the cleaning process. Works with standard joint cutting equipment to restore joints to specification before applying new backer rod and sealant. Built for concrete contractors and maintenance crews who need reliable joint preparation tools for repair and restoration work.