The OLFA RSKB Round Tip Dual-Edge Safety Blades feature high-quality carbon tool steel construction for superior sharpness and edge retention. The rounded tip design minimizes tip breaks and reduces punctures to contents under the cut. The dual-edge design doubles the cutting life of each blade.

For use with OLFA SK-4 Semi-Automatic Self-Retracting Safety Knife, SK-6 Fully-Automatic Safety Knife with Blade Guard, and SK-9 Semi-Automatic Self-Retracting Safety Knife with Tape Splitter.