• 8-segment 18mm snap-off blade
  • Made from high-quality carbon tool steel
  • Heavy-duty ultra-sharp black blade has a 25% sharper edge for less cutting resistance
  • Exact 59 degree front-edge angle optimizes cutting power and minimizes blade breakage
  • Fits all OLFA PRO 18mm utility knives
  • Also available in pack of 100, 10, and 5
$36.49 Suggested MSRP
Where to Buy

For cutting jobs that require superior sharpness, choose these OLFA® Heavy-duty Ultra-sharp blades. The carbon tool steel blades are double-honed for a blade that is 25% sharper than our standard silver blade. Use these blades on heavy-duty construction materials including drywall, linoleum, carpet, flooring, insulation, roofing, and much more. (LBB-50B, #9069)


OLFA cutter & non-disposable scraper handles, locking mechanisms, and 9mm standard duty blades, 18mm heavy duty blades, 25mm extra-heavy duty blades, safety and trapezoid-shaped blades and scraper blades are subject to the World Kitchen d/b/a/ OLFA - North America satisfaction guaranteed or replacement policy.*

If at any time you are dissatisfied with these “Satisfaction Guaranteed” products, World Kitchen d/b/a/ OLFA - North America will provide an equally valued replacement. Please allow 4 to 6 weeks for delivery of replacement product. Should you be dissatisfied with any such product, please keep it. You may be asked to return it. Please contact our Consumer Care Center for warranty claims.

*PLEASE NOTE: This Policy does not apply to OLFA TouchKnife®, OLFA scissors, OLFA mats, OLFA rulers, disposable OLFA multi-purpose scrapers, all styles and models of 18mm, 28mm, 45mm, 60mm, rotary cutter replacement blades, and all styles and models of “KB” art knife replacement blades.