STANLEY FMHT10289
Stanley FMHT10289 FatMax ExoChange Folding Utility Knife User Manual
Model: FMHT10289
Introduction
This manual provides essential information for the safe and effective use, maintenance, and troubleshooting of your Stanley FMHT10289 FatMax ExoChange Folding Utility Knife. Please read this manual thoroughly before operation.

Figure 1: The Stanley FatMax ExoChange Folding Utility Knife in an extended position, showcasing its design and grip.
Safety Information
Always exercise caution when handling sharp objects. Keep the utility knife out of reach of children. Wear appropriate personal protective equipment, such as gloves and eye protection, when operating or maintaining the knife.
- Ensure the blade is fully retracted or folded when not in use.
- Do not apply excessive force when cutting, as this can lead to blade breakage or injury.
- Always cut away from your body.
- Inspect the blade for damage before each use. Replace dull or damaged blades immediately.
Setup
Unfolding the Knife
- Grasp the handle firmly.
- Pivot the blade housing away from the handle until it locks into the fully extended position.

Figure 2: The utility knife fully extended, ready for use.
Operating Instructions
Extending and Retracting the Blade
The knife features a magnetic and exposed slider for fast manual blade changes and easy debris removal.
- To extend the blade, push the slider forward until the blade is at the desired length. The slider provides multiple locking positions for various cutting depths.
- To retract the blade, pull the slider backward until the blade is fully enclosed within the housing.
Folding the Knife for Storage
The folding feature allows for easy storage and portability.
- Ensure the blade is fully retracted into the housing.
- Locate the folding release mechanism (if present, typically a button or lever near the pivot point) and engage it.
- Carefully fold the blade housing back into the handle until it clicks securely into the closed position.

Figure 3: The utility knife in its folded, compact state for safe storage.
Maintenance
Blade Replacement
The Stanley FatMax ExoChange Folding Utility Knife is designed for quick and easy blade changes.
- Ensure the blade is fully extended for removal, or partially extended to access the release mechanism.
- Locate the blade release button or lever on the slider. Press or activate it.
- Carefully slide the old blade out. Dispose of used blades safely in a designated container.
- Insert a new standard utility knife blade into the slot, ensuring it aligns correctly with the internal guides.
- Release the button/lever and retract the blade to secure it. Test the blade's security by gently pulling on it.

Figure 4: The knife with a blade partially removed, illustrating the blade change process.
Cleaning and Storage
- After each use, remove any debris from the blade housing and slider mechanism. The design allows for quick and easy debris removal.
- Wipe down the knife with a dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Store the knife in its folded position in a dry, secure location, away from moisture and out of reach of children.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Blade does not extend or retract smoothly. | Debris in slider mechanism; bent or damaged blade. | Clean the slider mechanism. Replace the blade if damaged. |
| Knife does not fold securely. | Obstruction in folding mechanism; mechanism damage. | Check for and remove any debris. If damaged, contact customer support. |
| Blade feels loose after replacement. | Blade not seated correctly; incorrect blade type. | Ensure the blade is fully inserted and the release mechanism is engaged. Use standard utility knife blades. |
Specifications
- Model: FMHT10289
- Brand: STANLEY
- Blade Material: Alloy Steel
- Handle Material: Blend (Bi-Material)
- Special Features: Foldable, Fast Manual Blade Change, Quick Debris Removal, Soft Touch Grip
- Item Weight: Approximately 0.32 ounces (9.07 g)
- Included Components: FATMAX FOLDING EXO CHANGE KNIFE
Warranty and Support
This Stanley FMHT10289 FatMax ExoChange Folding Utility Knife comes with a Limited Lifetime Warranty. For warranty claims, technical support, or further assistance, please contact STANLEY customer service or visit their official website.
For more information, visit the STANLEY Store on Amazon.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.







