18mm Heavy-Duty Utility Knife w/ Extend-Depth ( OL ) | OLFA - ProfessionalOLFA – Professional


  • Designed for applications needing extended cutting
  • Extended stainless steel blade channel supports 1-1/2″ blade exposure or (4) blade segments
  • Durable, high-impact ABS handle
  • Ratchet-lock mechanism
  • No tool blade change
  • Preloaded with an 18mm LB Heavy-Duty Silver Snap-Off Blade


$12.60 Suggested MSRP
Where to Buy

Over 1-Inch of Extra Blade Exposure

The 18mm Heavy-Duty Utility Knife with Extended-Depth and Carpet Tuck Tool is ideal for cutting carpet and thick materials. This ratchet-wheel blade lock knife features an extended stainless-steel channel that allows for additional blade segments to be extended for greater cutting depth while still maintaining solid blade support. The extended segments allow for over 1-inch of blade exposure for deep cuts.

The durable handle is made from ABS plastic. The handle also includes a built-in multi-purpose pick for tucking carpet, removing staples, prying, and more.

Pre-loaded with an 18mm LB Heavy-Duty Silver Snap-Off Blade, this knife is ideal for heavy-duty cuts through thick materials including carpet, linoleum, and rubber, as well as drywall, roofing, and more. ( OL , #5011US)

WARNING: California Proposition 65 Warning


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 Corelle Brands d/b/a/ OLFA - North America satisfaction guaranteed or replacement policy.*

If at any time you are dissatisfied with these “Satisfaction Guaranteed” products, Corelle Brands 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.

1 OLFA 18mm LB Silver Snap-Off Blade, providing sharper initial cutting performance
2 Stainless Steel Blade Extended Channel, supports 1-1/2" blade exposure and four blade segments
3 No Tool Blade Change, easier and quicker blade change
4 Ratchet Lock Mechanism
5 Multi-Purpose Metal Pick