Game-Changing Lock Innovation Meets Premium Titanium Architecture

The Demko Knives AD20.5 (Model AD20.5-20CV-SMOOTH TI-SF) is an elite everyday carry folder built around Andrew Demko’s revolutionary, patented Shark-Lock™ mechanism. Situated entirely on the spine of the knife, the spring-loaded lock is operated by pulling back on a ramp-like "fin," allowing the blade to drop shut effortlessly on fluid ball-bearing pivot mechanics. When fully deployed, the lock fin provides an ergonomic, highly functional jimped thumb ramp for maximum control.

This premium configuration elevates the production platform with an ultra-premium CPM 20CV stainless steel blade—renowned for its world-class wear resistance and edge longevity—and pairs it with a sleek, minimalist smooth titanium handle chassis. Engineered for hard use and high-satisfaction mechanical fidget factor, the AD20.5 stands as an industry benchmark for strength, accessibility, and modern pocket knife design.

Product Dimensions

• Blade Length: 3.00" (7.62 cm) 
• Closed Length: 4.50" (11.43 cm)
• Overall Length: 7.50" – 7.62"
• Blade Thickness: 0.125" (3.2 mm)
• Weight: Approx. 4.40 oz

Features

• Blade Material: Premium CPM 20CV Stainless Steel for elite edge retention, structural toughness, and superior corrosion resistance
• Blade Finish: Stonewash to seamlessly mask surface scuffs and daily wear patterns
• Blade Style: Shark Foot (Wharncliffe-inspired utility profile) providing an aggressive, highly controllable tip and straight slicing edge
• Locking Mechanism: Patented ambidextrous Shark-Lock™ providing high-security lockup while keeping fingers safely clear of the blade path
• Handle Material: High-grade Smooth Titanium scales offering a clean, modern aesthetic and long-term durability
• Deployment Options: Fully ambidextrous opening utilizing either the thumb stud or the integrated elongated thumb slot
• Pivot Mechanism: High-clearance ceramic ball bearings for lightning-fast, drop-shut manual operation
• Pocket Clip: Tip-up carry configuration (Includes interchangeable right-hand and left-hand pocket clips)
• Packaging: Boxed
• Model Code: AD20.5-20CV-SMOOTH TI-SF
• Brand: Demko Knives