Our Most Popular Single Edge Blade Ever! Precision Honed, Surgical Steel Edges Each Blade is Individually Wrapped CRL Single Edge Razor Blades are top quality, industrial grade, surgical steel precision-honed for extra sharpness. They deliver durability along with the exacting quality cut that professionals demand. CRL has over 30,000 different products, and this one is in the top 10 in requests year after year! From industrial to home use, the quality far exceeds all needed quality standards.