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The WE Knife Sine Wave blends cutting-edge performance with sleek design, making waves in every aspect.

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We Knife Company Sine Wave Nested Liner Lock Front Flipper Knife 3.98" M390 Black Stonewashed D…Retail price: $385.00, our price: $327.25
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We Knife Company Sine Wave Nested Liner Lock Front Flipper Knife 3.98" M390 Stonewashed Drop Po…Retail price: $395.00, our price: $335.75
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We Knife Company Sine Wave Nested Liner Lock Front Flipper Knife 3.98" M390 Polished Gray Drop …Retail price: $415.00, our price: $352.75
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We Knife Company Sine Wave Nested Liner Lock Front Flipper Knife 3.98" M390 Polished Bead Blast…Retail price: $415.00, our price: $352.75
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WE Knife Sine Wave FAQ

The WE Knife Sine Wave series features a substantial 4 inch blade and premium titanium construction, making it a standout choice for those seeking a large, high-performance folder. Its distinctive nested liner lock and subtle front flipper mechanism provide a clean, streamlined aesthetic rarely seen in knives of this size.

What blade steel does the WE Sine Wave use?
Most models in the WE Knife Sine Wave series use M390 stainless steel, known for its exceptional edge retention and corrosion resistance. Certain high-end versions feature Damasteel, which is a powder metallurgy product based on RWL34 that prioritizes visual aesthetics without sacrificing high performance.
Is the Sine Wave a frame lock or a liner lock?
The Sine Wave series utilizes a nested liner lock rather than a standard frame lock. This design choice allows the intricate machining and milling on the titanium handles to remain consistent across both sides of the knife while maintaining a secure and reliable locking mechanism.
How does the front flipper mechanism work on this series?
The Sine Wave uses a subtle, low-profile front flipper tab located at the top of the handle. This allows the blade to rocket open quickly while ensuring that no traditional flipper tab protrudes from the bottom of the knife when open, allowing for a closer grip and better control near the cutting edge. This makes it a unique entry among flipper pocket knives.
What are the benefits of the Sine Wave handle design?
The handles are crafted from titanium and feature extensive machining and milling for a premium feel and improved grip. Because the flipper tab is tucked away when the knife is open, there is more usable handle space and nothing to get in the way during detailed cutting tasks.
Is the WE Sine Wave suitable for everyday carry?
While the Sine Wave is a larger knife with a 4 inch blade, its streamlined profile and titanium construction make it a capable choice for those who prefer a full-sized EDC tool. The nested liner lock and integrated pocket clip help it carry more comfortably than many other knives with similar blade lengths.