1. Introduction
The Olfa L5-AL is a professional-grade utility knife designed for precision cutting tasks. It features an 18mm blade with an automatic locking mechanism for secure operation. The ergonomic rubber grip ensures comfortable handling, while the integrated metal pick at the end of the handle provides additional utility for tasks such as opening cans or scoring materials.
This manual provides essential information for the safe and effective use, maintenance, and care of your Olfa L5-AL utility knife.
2. Safety Information
WARNING: Blades are extremely sharp. Handle with extreme caution to prevent serious injury.
- Always keep the utility knife out of reach of children and pets.
- Wear appropriate personal protective equipment, such as cut-resistant gloves and eye protection, when handling or replacing blades.
- Ensure the blade is fully retracted into the handle when the knife is not in use.
- Do not apply excessive force that could cause the blade to break or slip.
- Always cut away from your body.
- Dispose of used blades safely in a designated blade disposal container.
3. Product Components
Familiarize yourself with the main components of your Olfa L5-AL utility knife:
- Blade: The cutting edge, 18mm wide.
- Blade Slider: Mechanism to extend and retract the blade. Features an automatic lock.
- Handle: Ergonomic grip, often with rubberized sections for comfort and control.
- Metal Pick: Located at the rear of the handle, used for various tasks like opening cans or scoring.


4. Setup: Blade Installation and Replacement
To ensure safe and effective operation, proper blade installation is crucial.
- Retract Blade: Ensure the blade slider is in the fully retracted position.
- Remove Old Blade (if applicable): Locate the blade release button or mechanism (typically a small button or a specific position on the slider). Press or slide it to unlock the blade. Carefully slide the old blade out from the front of the knife.
- Insert New Blade: Take a new 18mm Olfa blade. Align the grooves on the blade with the guides inside the knife handle. Carefully slide the new blade into the knife until it clicks securely into place.
- Verify Security: Gently try to pull the blade out without pressing the release. It should be firmly locked.
- Safe Disposal: Dispose of used blades in a hard, puncture-resistant container.

5. Operating Instructions
Follow these steps for safe and effective operation of your utility knife:
- Extending the Blade: Push the blade slider forward with your thumb until the desired blade length is exposed. The automatic lock will engage, securing the blade in position for cutting.
- Cutting: Place the blade against the material to be cut. Apply firm, even pressure and guide the knife along the desired cutting line. Always cut on a stable, protected surface.
- Retracting the Blade: After each use, pull the blade slider backward until the blade is fully retracted into the handle. This prevents accidental cuts and protects the blade.
- Using the Metal Pick: The metal pick located at the rear of the handle can be used for tasks such as opening paint cans, scoring materials, or safely cutting packaging tape without damaging contents. Position the pick and apply leverage or pressure as needed.
6. Maintenance
Regular maintenance ensures the longevity and performance of your Olfa L5-AL utility knife.
- Blade Replacement: Replace blades when they become dull to maintain cutting efficiency and safety. Refer to the 'Setup: Blade Installation and Replacement' section for detailed instructions.
- Cleaning: Wipe the cutter with a dry cloth to remove dust, debris, and any residue after use. Avoid using harsh chemicals or abrasive cleaners that may damage the handle material or blade.
- Storage: Store the utility knife in a dry, safe place with the blade fully retracted.
7. Troubleshooting
If you encounter issues with your Olfa L5-AL, consider the following:
- Blade not extending or retracting smoothly: Check for any debris, dust, or material fragments in the blade channel. Ensure the blade is correctly installed and not bent or damaged. Clean the channel if necessary.
- Blade not locking securely: Verify that the automatic locking mechanism is free of obstructions. If the issue persists, the cutter's internal mechanism may be worn or damaged, and the cutter may require replacement.
- Poor cutting performance: This is typically an indication of a dull blade. Replace the blade with a new, sharp Olfa 18mm blade.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Olfa |
| Model Number | ARL5-AL |
| Blade Size | 18 mm |
| Blade Material | Metal |
| Handle Material | Plastic, Rubber |
| Color | Black, Yellow |
| Product Length | 90 Millimeters |
| Locking Mechanism | Automatic Lock |
| Special Features | Integrated Metal Pick |
| UPC | 091511200447 |
9. Warranty Information
Based on the available product information, there is no specific manufacturer's warranty description provided for the Olfa L5-AL utility knife. Please retain your proof of purchase and refer to the return and warranty policies of the retailer from whom you purchased this product for any potential coverage or support.
10. Support
For further assistance, technical support, or inquiries regarding your Olfa L5-AL utility knife, please contact:
- Olfa Customer Service: Refer to the official Olfa website for contact information specific to your region.
- Your Product Retailer: The store or online platform where you purchased the product can provide support and information regarding returns or exchanges.




