The single edge razor blades are super sharp industrial grade blades. The blades are perfect for removing labels, adhesive, dried paint, or other materials from most flat surfaces without leaving scratches or for quickly opening packages. The full-depth blades are 0.009" thick, industrial quality and have a plated steel backing for added durability. Individually paper wrapped for edge protection and safety. All blades are notched and feature steel backing. Fits all types of single-edge scrapers. Made in USA