--- product_id: 682478959 title: "LKU01 Urban (Dark) Folding Knife, Bohler N690 Steel, 58 HRC, Premium EDC Tool, Made in Italy" brand: "extrema ratio" price: "$526.95" currency: USD in_stock: true reviews_count: 2 url: https://www.desertcart.us/products/682478959-lku01-urban-dark-folding-knife-bohler-n690-steel-58-hrc store_origin: US region: United States of America --- # 58 HRC Bohler N690 Steel Blade Quick Release Mechanism for instant access Handcrafted in Italy with premium materials LKU01 Urban (Dark) Folding Knife, Bohler N690 Steel, 58 HRC, Premium EDC Tool, Made in Italy **Brand:** extrema ratio **Price:** $526.95 **Availability:** ✅ In Stock ## Summary > 🗡️ Elevate your everyday carry with Italian precision and tactical edge. ## Quick Answers - **What is this?** LKU01 Urban (Dark) Folding Knife, Bohler N690 Steel, 58 HRC, Premium EDC Tool, Made in Italy by extrema ratio - **How much does it cost?** $526.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/682478959-lku01-urban-dark-folding-knife-bohler-n690-steel-58-hrc) ## Best For - extrema ratio enthusiasts ## Why This Product - Trusted extrema ratio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rapid Deployment:** Quick release mechanism ensures your knife is ready the moment you need it—no fumbling, no delay. - • **Sleek Urban Design:** Burnished black finish and anodized aluminum handle combine style with durable, lightweight comfort. - • **Ergonomic Precision:** Contoured handle engineered for secure grip and balanced control in any urban or outdoor scenario. - • **Elite Edge Retention:** 58 HRC hardened Böhler N690 steel blade delivers unmatched daily sharpness and chopping power. - • **Lifetime Italian Craftsmanship:** Handmade by expert artisans in Italy, backed by a lifetime warranty for enduring reliability. ## Overview The Extrema Ratio LKU01 Urban Folding Knife features a premium Böhler N690 steel blade hardened to 58 HRC for superior edge retention and chopping power. Its lightweight anodized aluminum handle offers ergonomic stability and a secure grip, enhanced by a quick release mechanism for instant accessibility. Handcrafted in Italy by expert artisans, this knife blends tactical heritage with modern design, making it a durable, stylish, and reliable EDC tool backed by a lifetime warranty. ## Description Heavy N690 steel blade optimized for superior chopping power and extreme edge retention. Slim, textured handle engineered for a secure hold and superior control in urban environments. Ultra-slim fixed design that offers the strength of a tactical knife with zero pocket bulk. Resolza 10 ANT Ferrum E BF2 CD RAO C Versa Extrema Ratio was born thirty years ago from a single belief: to outperform the ordinary. What started as a tool for elite units is now a standard of excellence spanning Tactical, Outdoor, and EDC. Every blade shares the same DNA, a conscious process where nothing is left to chance, designed for those who refuse to compromise on the tools they choose, from professional missions to everyday life. Every line and material choice is the result of a conscious process, ensuring each tool becomes a true extension of yourself. Our commitment to you never expires. It’s not just marketing; it’s a standard we honor without exception to protect our global community. We evolve our tactical heritage while expanding into new territories with the same rigor. One soul for three worlds: Tactical, Outdoor, and EDC. Our blades win the most rigorous military tenders across every continent, and our bayonets are chosen by the world's leading rifle manufacturers. This technical rigor lives in every piece crafted in our Italian workshop, where light flows over surfaces finished by our artisans to absolute reliability and surgical precision in any condition. ## Features - Bohler N690 Steel Blade: High-performance stainless steel hardened to 58 HRC for daily edge retention. - Burnished black finish: gives an elegant and sophisticated aesthetic. - Lightweight Aluminum Handle: Durable and contoured for a secure and natural grip during prolonged use. - Anodized Coating: Protects the handle from wear, maintaining its functionality and look over time. - Quick Release Mechanism: Engineered for easy opening and accessibility in various daily scenarios. - Handcrafted in Italy: Each component is meticulously selected and assembled by expert Italian artisans. - Everyday Extraordinary: Designed for individuals who demand elite quality in their daily utility tools. - Ergonomic Stability: Balanced for precision handling and control in a variety of non-combative tasks. - Innovation & Tradition: Merging advanced materials with thirty years of professional craftsmanship. - Lifetime Warranty: A global promise of excellence that ensures your EDC tool is built to last a lifetime. ## Technical Specifications | Specification | Value | |---------------|-------| | Age Range Description | Adult | | Asin | B0DMPMYX4L | | Best Sellers Rank | #250,054 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #902 in Camping Folding Knives | | Blade Length | 3.94 Inches | | Blade Material | böhler N690 steel (58 HRC) | | Blade Shape | Spear Point | | Brand Name | Extrema Ratio | | Color | Urban Dark | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.9 4.9 out of 5 stars (10) 4.9 out of 5 stars | | Hand Orientation | Ambidextrous | | Handle Material | Aluminum, Anticordal Anodized | | Included Components | Pocket Clip | | Is Product Cordless | Yes | | Item Length | 8.78 Inches | | Item Weight | 4.33 Ounces | | Manufacturer | Extrema Ratio | | Model Name | LKU01 (Urban Dark) | | Model Number | 04.1000.0243/U/BLK-BLK | | Part Number | 04.1000.0243 | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Bushcrafting, Camping, Emergency, Fishing, Hiking, Hunting, Utility | | Reusability | Reusable | | Special Features | Ergonomic Handle, Reversible | | Style | Italian | | Theme | Tactical | | Unit Count | 1.0 Count | ## Product Details - **Age Range (Description):** Adult - **Blade Material:** böhler N690 steel (58 HRC) - **Brand:** Extrema Ratio - **Color:** Urban Dark - **Handle Material:** Aluminum, Anticordal Anodized - **Included Components:** Pocket Clip - **Model Name:** LKU01 (Urban Dark) - **Recommended Uses For Product:** Bushcrafting, Camping, Emergency, Fishing, Hiking, Hunting, Utility - **Special Feature:** Ergonomic Handle, Reversible - **Style:** Italian ## Images ![LKU01 Urban (Dark) Folding Knife, Bohler N690 Steel, 58 HRC, Premium EDC Tool, Made in Italy - Image 1](https://m.media-amazon.com/images/I/51nxl4d1TbL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 9.5/10 *by on Reviewed in the United States December 3, 2025* excellent fit and finish, razor sharp, no play. my only complaint it the thumb disc could be a little bigger to make one handed opening a little easier, or a flipper tab on the back...but otherwise, its incredibly nice ### ⭐⭐⭐⭐⭐ Not just another manual folder *by on Reviewed in the United States August 27, 2025* This is a high-quality, practical, and unique knife designed by legendary Danilo Lajolo di Cossano of Italy - the founder of Lajolo Knife Fighting System (LKFS). Knife is uniquely designed for a quick draw and is great for training beautiful and powerful LKFS forms (katas). This knife can be a start of a lifelong training journey, or simply one of the jewels of your knife collection ## Frequently Bought Together - Extrema Ratio - LKU01 (Urban Dark), Böhler N690 Steel Blade 58 HRC, Black Burnished Finish, Smooth Aluminum Handle, Compact Design, Italian Craftsmanship - KNIFE PIVOT LUBE Original Knife Oil for Blades, Synthetic Pocket Knife Lubricant, Knife Honing Oil for Cleaning Knives, Premium Knife Oil Lubricant for Blade Care, Precision Knife Oiler Bottle (10ml) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/682478959-lku01-urban-dark-folding-knife-bohler-n690-steel-58-hrc](https://www.desertcart.us/products/682478959-lku01-urban-dark-folding-knife-bohler-n690-steel-58-hrc) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-16*