Olfa 1123432 Utility Blade, 18 mm, Carbon Tool Steel, Snap-Off Edge

Double-honed for extreme sharpness, Olfa 18 mm heavy-duty ultra-sharp black snap-off blades are 25% sharper than standard Olfa silver blades. These heavy-duty blades are manufactured from high-quality Japanese carbon tool steel. Use heavy-duty ultra-sharp black blades for any application requiring superior sharpness. Eight segments per blade deliver a fresh new edge quick and easy.