OLFA® ENDURANCE™ blades are made from high carbon tool steel (SK-2) and sharper than most other snap-off blades in the world.
During the manufacturing process, the following factors are perfected to ensure a good balance between sharpness and long life:
Hardness Sharpening Angles Tapered Dimensions Coarseness of whetstone Speed of grinding
This 18mm size is 0.5mm thick and has 8 snap segments.
The blades are suitable for cutting through various types of heavy-duty materials such as plasterboard, vinyl floor tiles, carpet, insulation, and heavy vinyl wallpaper.