Olfa Spare Blade LBB-10 18mm heavy-duty black snap-off blade. Blade Length. Made from high-quality carbon tool steel, Excel Black ultra-sharp blades are manufactured using a special double honing process. Sharpened over a wider angle, they are much, much sharper than other blades on the market. Micro-honed blade provides superior initial sharpness and edge retention Exact 59-degree front-edge angle optimizes cutting power and minimizes blade breakage. 10 pack (LBB-10B).
