TAB-Product-Overview
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The OLFA 18mm L‑1 Ratchet‑Lock Utility Knife is a reliable heavy‑duty utility knife designed for construction, manufacturing, and general jobsite cutting. The durable ABS handle and contoured grip provide comfort and control, while the ratchet‑lock mechanism allows precise blade adjustment and the stainless‑steel blade channel adds stability.
Preloaded with an 18mm Silver Snap‑Off Blade, it delivers consistent cutting performance with eight snap‑off segments for long‑lasting sharpness and quick edge refresh without tools.
(L-1, #5003)
TAB-Blade-Compatibility
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Accepts all OLFA 18mm blades including L-SOL Solid Silver Blades, LWB Serrated Edge Blades, LBB Ultra-Sharp Black Blades, LFB Ultra-Sharp Black Speed Blades, and LH Hook Snap Blades.
TAB-Applications
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| Carpet | Cardboard/Corrugate |
| Drywall | Films |
| Flexible plastics | Gaskets |
| House wrap | Landscape fabrics |
| Linoleum | Plastic sheeting |
| Plastic straps | Shingles |
| Shrinkwrap | Tape |
| Twine/Rope | And more |
TAB-Support-&-Resources
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BLADE CHANGE INSTRUCTIONS: Click here for directions on how to change your blade
HOW TO SNAP INSTRUCTIONS: Click here for directions on how to snap a blade
WARRANTY: Click here for the Warranty.
SELL SHEET: Click here to download L-1 Sell Sheet
SELL SHEET (French): Click here to download L-1 Sell Sheet in French
TAB-Distributors
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© 2026 OLFA North America Inc. OLFA is a registered trademark of OLFA Corporation, Japan, used under license by OLFA North America Inc.