N.U.M.B. Knifeworks – NKW-N1Blue – N1 The Cornerstone – Folding Knife – S90V Satin Sheepsfoot – Titanium – Blue

The N.U.M.B. Knifeworks NKW-N1Blue N1 The Cornerstone is a premium manual folding knife that represents the foundation of the N.U.M.B. design language. The Cornerstone is more than a simple debut design; it is a statement piece built around mechanical curiosity, tactile engagement, and serious everyday carry function. Designed with a distinctive modified sheepsfoot blade, milled titanium construction, and N.U.M.B.’s ambidextrous PinchLOK system, this knife gives collectors and users something that feels genuinely different from the typical high-end folder.

The blade is crafted from CPM S90V and features a satin finish with a hollow-ground modified sheepsfoot profile. CPM S90V is a premium stainless blade steel known for outstanding edge retention, excellent wear resistance, and long-lasting cutting performance. It is a steel that rewards serious users who value edge holding and also appeals strongly to collectors because it gives the knife performance credibility to match the mechanical design and upscale materials. The modified sheepsfoot shape gives the N1 excellent control at the tip and a highly usable cutting edge for daily utility tasks. It is the kind of blade shape that makes sense for real carry because it handles package opening, shop work, slicing, and precision cutting without feeling delicate or overly specialized. The front flipper and thumb hole opening options give the knife a more interactive feel, while the bearing pivot helps keep the action smooth and controlled.

The handle is built from milled titanium in a blue finish, giving the knife a rigid, durable, and premium foundation. The milling gives the handle texture and dimension without making it feel overdone, while the titanium construction keeps the knife strong, corrosion resistant, and suitable for serious carry. The proprietary PinchLOK mechanism uses dual detent balls and dual locking arms for secure lockup and ambidextrous operation, creating a unique mechanical experience that separates the N1 from more common liner lock and frame lock folders.

With a 3.05″ blade, 4.15″ handle, and 7.20″ overall length, this knife sits in the sweet spot for a high-end everyday carry folder. It has enough blade to feel capable and useful, but it remains compact enough to carry comfortably and enjoy regularly. The reversible tip-up clip, ambidextrous lock system, and premium material package make it suitable for both right- and left-handed users. More importantly, it has the kind of design identity that makes a collector stop and look twice.

This is exactly the kind of knife that makes sense for a serious enthusiast who already owns standard production folders and wants something more mechanically interesting. The N.U.M.B. Knifeworks design language, S90V steel, refined action, and unique PinchLOK system combine to create a folder that is tactile, functional, and visually memorable.

Specifications:

• Manufacturer: N.U.M.B. Knifeworks
• Model: N1 The Cornerstone
• SKU: NKW-N1Blue
• Knife Type: Manual Folding Knife
• Blade Length: 3.05″
• Closed Length: 4.15″
• Handle Length: 4.15″
• Overall Length: 7.20″
• Weight: 3.95 oz
• Blade Steel: CPM S90V
• Blade Style: Modified Sheepsfoot
• Blade Grind: Hollow
• Blade Finish: Satin
• Edge Type: Plain
• Handle Material: Milled Titanium
• Handle Color: Blue
• Opening Mechanism: Front Flipper / Thumb Hole
• Pivot Type: Bearings
• Locking Mechanism: PinchLOK
• Pocket Clip: Reversible Titanium Pocket Clip
• Carry Position: Tip-Up
• User: Right Hand / Left Hand
• Designer: N.U.M.B. Knifeworks
• Country of Origin: China
• Best Use: Everyday Carry

What’s more, you can experience this item for yourself by holding, smelling it, or even taking a selfie with it in person at our local store, Sharp Things OKC, located at 6610 N. May Ave., Oklahoma City, OK 73116. Alternatively, you can purchase with confidence here online at SharpThings.com. You will experience world-class customer service in either environment. Don’t miss out on this exceptional product – add it to your cart and your collection today. Feel free to give us a call 7 days a week anytime between 9 AM and 9 PM. 405-286-2112 with any questions.