BETON F120416 LLANA DE ACABADO 6" X 18" X 1.6 MM ESPESOR P/ ALL 46", SET DE 4 PZAThese finishing blades are manufactured from high carbon spring steel with high abrasive resistance.Blade bars machined to fine tolerances & blade base rivet holes cut and countersunk to ensure perfect blade assembly every time.Rigid quality control for consistent supplyBlades to fit most major trowel producers.Finishing blades packaged with plastic thread protectors