SOG Pentagon FX – 3.41" Fixed Blade, Spear Point, Straight Edge
CPM S35VN Premium Steel • Black Titanium Nitride (TiNi) Finish • Textured G10 Handle • Nylon Sheath Included
Model: SOG-17-61-03-57 / SOG17610357 • UPC: 729857011525
Compact, precise, and mission-ready—the SOG Knives & Tools Pentagon FX (3.41") delivers big performance in a smaller, lighter fixed blade. Its 3.41-inch spear-point blade is ground from CPM S35VN, a premium powder metallurgy stainless steel prized for long edge life, toughness, and corrosion resistance. A low-signature Black Titanium Nitride (TiNi) finish adds wear protection and reduces glare, while the textured G10 handle locks into your hand for secure control in wet, cold, or gloved conditions. The package includes a rugged nylon sheath for dependable retention and flexible mounting options on belts and packs.
If you want a compact fixed blade that balances cutting performance with carry comfort, the Pentagon FX 3.41" is a standout choice for field, duty, and everyday utility.
Why the SOG Pentagon FX (3.41") Stands Out
Top-Tier CPM S35VN Steel
Engineered with niobium and vanadium carbides for excellent edge retention, impressive toughness, and enhanced corrosion resistance—ideal for hard, daily use.
Black TiNi Protective Finish
SOG’s Titanium Nitride coating increases abrasion resistance and keeps reflections down for a professional, low-profile blade.
Spear-Point Precision + Straight-Edge Simplicity
The symmetrical spear point centers the tip for controlled piercing and fine detail work. The straight (plain) edge delivers clean slicing and straightforward sharpening in the field.
Grip-Sure G10 Scales
G10 laminate is tough, dimensionally stable, and aggressively textured, providing a secure, hand-filling grip without excess bulk.
Carry-Ready Nylon Sheath
Durable nylon sheath offers positive retention and multi-position mounting so you can carry vertically or with a slight cant on belt or pack straps.
Key Specifications
Brand / Series: SOG Knives & Tools — Pentagon FX
Model / UPC: SOG-17-61-03-57 / SOG17610357 • 729857011525
Blade Length: 3.41 inches
Blade Steel: CPM S35VN stainless
Blade Style: Spear point
Edge Type: Straight (plain) edge
Finish: Black Titanium Nitride (TiNi)
Handle: Textured G10, black
Sheath: Black nylon, secure retention, multi-mount
Colorway: Black blade / black handle
Use: Field/duty, rescue/utility, camping/overlanding, EDC fixed-blade tasks*
*Always follow local laws regarding knife carry and blade length.
Performance You’ll Notice
Long-Lasting sharpness
S35VN maintains a working edge far longer than common steels, so you’ll sharpen less and cut more.
Control & Confidence
The spear point balances strength and precision; the straight edge offers predictable, easy-to-maintain geometry for push cuts and draw cuts alike.
Low-Glare Durability
The TiNi coating helps resist corrosion and abrasion, keeping the blade mission-ready and discreet in bright conditions.
Secure, All-Weather Grip
G10 texturing and ergonomic contours reduce hand fatigue and prevent slipping in rain, sweat, or gloves.
Ideal Use Cases
Field & Duty: Cutting webbing, cordage, plastic, and packaging; tip-precise scoring and piercing.
Camping & Overlanding: Food prep, notching, feather sticks, tent and strap trimming.
Rescue/Utility: Reliable fixed blade with quick, one-hand access from the nylon sheath.
Everyday Carry: Compact footprint with fixed-blade strength and fast deployment.
Carry & Setup Tips
Configure the Sheath: Mount vertically or with a slight cant; test draw with your dominant hand.
Retention Check: Ensure the sheath offers a firm hold and smooth release; adjust placement for your activity level.
Practice with Gloves: Rehearse draw/re-sheath motions to build real-world muscle memory.
Care & Maintenance
Clean & Dry: Rinse and dry after exposure to moisture, salt, or acidic foods.
Edge Work: Use ceramic or diamond stones with light pressure; S35VN rewards consistent angles.
Light Oil: A thin film at the edge helps in humid or marine environments.
Sheath Hygiene: Brush out grit and allow the nylon sheath to air-dry if soaked.
Frequently Asked Questions
Q: Why choose S35VN?
A: CPM S35VN balances edge retention, toughness, and corrosion resistance better than many mid-tier steels while still sharpening predictably.
Q: Is the blade fully plain edge?
A: Yes—this Pentagon FX configuration uses a straight (plain) edge for clean, precise cuts and easy maintenance.
Q: Can the sheath be mounted in multiple orientations?
A: Yes—the nylon sheath supports various carry angles on belts or packs.
Q: Suitable for food prep?
A: Absolutely. Clean thoroughly after use and dry the blade to maintain performance and finish.
Q: How compact is 3.41"?
A: It’s a carry-friendly fixed blade—large enough for serious utility, small enough for all-day comfort.
SEO Highlights (Quick Scan)
SOG Pentagon FX fixed blade — 3.41" spear point, straight edge
CPM S35VN steel with black Titanium Nitride (TiNi) finish
Textured G10 handle for secure grip in any weather
Nylon sheath included • compact field/duty/EDC knife
Model SOG-17-61-03-57 / SOG17610357, UPC 729857011525
The Bottom Line
The SOG Pentagon FX (3.41") delivers premium materials and practical ergonomics in a compact, low-profile package. With CPM S35VN, a stealthy Black TiNi finish, G10 grip, and a carry-flexible nylon sheath, it’s a reliable fixed blade you’ll trust for daily utility, backcountry trips, and professional duty alike.
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