Introduction
Thank you for choosing the Sitivien ST27 Fixed Blade Knife. This robust and versatile tool is designed for demanding outdoor activities such as camping, hunting, and general utility. Crafted with an 8mm thick Sleipner brushed steel blade and an ergonomic G10 handle, the ST27 offers exceptional durability and performance. Please read this manual carefully to ensure safe and effective use, maintenance, and longevity of your knife.

Figure 1: The Sitivien ST27 Fixed Blade Knife, Kydex sheath, and product packaging.
Setup
The Sitivien ST27 Fixed Blade Knife comes ready for use. Upon receiving your knife, please perform the following steps:
- Unboxing: Carefully remove the knife and its Kydex sheath from the packaging. Inspect all components for any signs of damage during transit.
- Initial Inspection: Check the blade for sharpness and ensure the handle is securely attached. Verify that the Kydex sheath provides a secure fit for the knife, preventing accidental dislodgement.
- Sheath Adjustment: The Kydex sheath features a universal clip that can be adjusted for horizontal or vertical carry, and the angle can be customized. The removable and adjustable bar on the clip allows for use on various belt sizes. Adjust the sheath to your preferred carrying method for comfort and accessibility.

Figure 2: The Sitivien ST27 knife and its durable Kydex sheath, designed for secure carry.
Operating the Knife
The ST27 is a powerful fixed blade knife suitable for a variety of outdoor and utility tasks. Always prioritize safety when handling any sharp tool.
Safety Guidelines:
- Always cut away from your body.
- Ensure a stable grip on the G10 handle. The ergonomic design provides a secure and confident hold.
- Keep the blade clean and free of debris to prevent slippage.
- Store the knife securely in its Kydex sheath when not in use.
- Never throw the knife.
Common Applications:
- Wood Processing (Batoning): The 8mm thick Sleipner steel blade is exceptionally strong and suitable for batoning small to medium-sized logs for firewood. Place the blade across the wood, then strike the spine of the blade with another piece of wood (a baton) to drive it through.
- Feathersticking: The sharp edge and robust blade allow for creating fine wood shavings (feathersticks) for fire starting. Hold the knife at a shallow angle to the wood and push forward, creating thin curls.
- Rope Cutting: The razor-sharp blade can efficiently cut through various types of rope and cordage.
- Fire Starting (Ferro Rod): The spine of the blade, particularly the jimping near the handle, can be used to strike a ferro rod to create sparks for fire ignition.
Video: Demonstrates the Sitivien ST27 Fixed Blade Knife in action, performing tasks such as batoning wood, creating feathersticks, and striking a ferro rod for fire starting. This highlights the knife's durability and utility in outdoor environments.

Figure 3: The ST27 knife held firmly by a gloved hand, illustrating the comfortable and secure grip provided by the G10 handle.
Maintenance
Proper maintenance is crucial for preserving the performance and lifespan of your Sitivien ST27 knife.
Cleaning:
- After each use, especially after contact with moisture, food, or corrosive materials, clean the blade and handle thoroughly.
- Use warm, soapy water and a soft cloth or brush. Avoid abrasive cleaners.
- Dry the knife completely before storage.
Sharpening:
- The Sleipner steel blade holds an edge very well but will eventually require sharpening.
- Use a high-quality sharpening system appropriate for high-hardness steels (e.g., diamond stones).
- Maintain the factory edge angle (typically around 20-25 degrees per side for a robust outdoor knife).
- Sharpening should be done carefully to avoid damaging the blade or injuring yourself. If unsure, seek professional sharpening services.
Storage:
- Store the knife in its Kydex sheath in a dry environment to prevent rust or corrosion.
- Keep out of reach of children.

Figure 4: A detailed view of the full tang construction, highlighting the robust design and red liner of the handle.
Troubleshooting
Most issues with your Sitivien ST27 knife can be resolved with proper care and maintenance. Below are some common concerns:
| Issue | Possible Cause | Solution |
|---|---|---|
| Blade feels dull | Normal wear and tear; improper use on hard surfaces. | Sharpen the blade using appropriate methods (see Maintenance section). Avoid cutting on stone or metal. |
| Rust spots on blade | Exposure to moisture or corrosive substances without proper cleaning and drying. | Clean immediately with a rust eraser or fine abrasive. Apply a thin coat of rust-preventative oil. Ensure thorough drying after each use. |
| Knife loose in sheath | Minor manufacturing variation or wear. | Check for debris inside the sheath. If the issue persists, contact customer support. |
| Handle feels slippery | Residue on handle (e.g., grease, dirt). | Clean the G10 handle with warm soapy water and a brush. Ensure hands are clean and dry during use. |
Specifications
Detailed technical specifications for the Sitivien ST27 Fixed Blade Knife:
- Overall Length: 12.76 inches (32.4 cm)
- Blade Length: 7.72 inches (19.6 cm)
- Handle Length: 5.04 inches (12.8 cm)
- Blade Width: 1.85 inches (4.7 cm)
- Blade Thickness: 8mm
- Handle Thickness: 0.87 inches (2.2 cm)
- Knife Weight (without sheath): 20.72 Ounce (587.5 grams)
- Knife Weight (with Kydex Sheath): 25.7 Ounce (728.5 grams)
- Blade Material: Sleipner Steel (60-62HRC hardness)
- Handle Material: G10 Fiberglass
- Blade Shape: Drop Point
- Special Feature: Full Tang Construction, Fixed Blade
- Included Components: ST27 Fixed Blade Knife, Kydex Sheath

Figure 5: A close-up of the blade, clearly showing the 'ST-27 Sleipner' marking, indicating the model and steel type.
Warranty and Support
Sitivien stands behind the quality of its products. For specific warranty information and to register your product, please visit the official Sitivien website or contact their customer service. Keep your purchase receipt as proof of purchase.
For any questions, concerns, or technical assistance, please contact Sitivien customer support through the contact information provided on their official website or through the retailer where you purchased the product.
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