The North Mountain Blade CHOP 4 (2412-BLCF) represents the pinnacle of the brand’s folding knife design. As the flagship model that helped ignite the front flipper trend, the CHOP 4 has achieved legendary status in Asia — with over 50,000 units sold — and is now gaining traction among enthusiasts worldwide.
The star of the show is the 3.5" Japanese-style tanto blade, crafted from SLD-Magic Japanese steel in a striking three-layer San Mai construction. The visible hamon wave pattern is both beautiful and functional, highlighting the precise forging that results in exceptional edge retention (60–61 HRC) and cutting performance.
The Blue Ceramic Carbon Fiber handle is lightweight, rigid, and visually striking, perfectly complementing the clean, minimalist design language of the CHOP 4. Paired with a front flipper mechanism running on ceramic ball bearings, deployment is smooth, precise, and satisfying.
This knife embodies functional minimalism, merging Japanese metallurgy with modern craftsmanship. It’s a refined tool with a rugged edge—ideal for collectors and EDC enthusiasts alike.
Key Features
3.5" SLD San Mai tanto blade with visible hamon wave pattern
Front flipper mechanism with ceramic bearings for smooth deployment
Distinctive Blue Ceramic Carbon Fiber handle for strength and visual appeal
60–61 HRC blade hardness for excellent edge retention and durability
Clean, functional design with no unnecessary embellishments
Part of the legendary CHOP 4 series with 50,000+ units sold globally
Specifications
Feature
Details
Brand
North Mountain Blade
Model Name
CHOP 4
Model Number
2412-BLCF
Product Type
Folding Knife
Opening Mechanism
Front Flipper
Overall Length
≈ 8.25 in
Blade Length
3.5 in
Blade Material
SLD-Magic San Mai Japanese Steel
Blade Style
Japanese-Style Tanto
Blade Grind
Flat
Blade Finish
Belt Satin with Hamon
Blade Hardness
60–61 HRC
Handle Material
Blue Ceramic Carbon Fiber
Locking Mechanism
Liner Lock
Pivot Assembly
Ceramic Ball Bearings
Clip Position
Tip-Up
Dexterity
Ambidextrous
Designer
North Mountain Blade Team
Country of Origin
China
Intended Use
EDC / Collection / Tactical
Feature Highlights
Premium SLD San Mai tanto blade (3.5") forged with traditional Japanese methods
Front flipper action with ceramic bearings for clean, fast deployment
Sleek blue ceramic carbon fiber handle — lightweight, strong, and eye-catching
Exceptional edge retention at 60–61 HRC
Iconic CHOP 4 series with 50,000+ units sold worldwide
Ideal for collectors, enthusiasts, and refined everyday carry
