These Olfa® Black Ultra Sharp blades have a 25% sharper edge for less cutting resistance. Use these blades for cutting carpeting, linoleum, drywall, roofing shingles and more. Good for flooring, drywall and roofing repair or replacement. Has a 59 degree edge angle which optimizes cutting power and minimizes blade breakage. Eight segments per blade.
Fits Olfa® 18mm Utility Knives including models CL, L-1, L-2, LA-X, NL-AL, NOL-1, OL, PL-1, SL-1 and XL-2