Based on the practical Slither design by custom knifemaker Stuart Ackerman, the Spyderco Sustain is a formidable fixed blade born from real-world outdoor and military experience. The broad, 6.19-inch blade is saber ground from premium CPM 20CV particle metallurgy stainless steel, featuring a prominent swedge that reduces weight while ensuring an acute, powerful point. Built for comfort and balance, the full-tang handle is contoured with smooth G-10 scales secured by concealed pins, providing a clean grip that feels deft and lively in the hand.
Key Features:
- Saber-ground CPM 20CV stainless steel blade offers superior edge retention and extreme corrosion resistance with a penetrating spear point profile.
- Robust full-tang construction provides exceptional structural strength while maintaining a balanced feel for precise control.
- Smooth, radiused Black G-10 scales feature a sub-hilt for grip security, accompanied by a high-quality leather sheath for carry.
- Made in Taiwan.
Specifications
| Product Type | Fixed Blade |
|---|---|
| Brand | Spyderco |
| Product Name | Sustain |
| Model # | FB39GP |
| Overall Length (in) | 11.50 |
| Blade Length (in) | 6.19 |
| Handle Length (in) | 5.30 |
| Blade Thickness (in) | 0.11 |
| Handle Thickness (in) | 0.53 |
| Blade Material | CPM-20CV |
| Blade Hardness (HRC) | 65-67 |
| Blade Style | Spear Point |
| Blade Edge | Plain |
| Blade Grind | Flat |
| Blade Finish | Satin |
| Handle Material | G-10 |
| Handle Finish | Black |
| Sheath Material | Leather |
| Sheath Color | Black |
| Weight (oz) | 7.30 |
| Origin | Taiwan |
| Blade Range | 6-6.99 |





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