Kubey RDF | Button Lock & 14C28N (Hydra Design EDC)

Precision Engineering, Addictive Action

The Kubey RDF (Reduced Drag Factor) is a masterclass in modern EDC design. Created in collaboration with Hydra Design’s Alessandra De Santis, the RDF is built for those who demand a knife that is as satisfying to operate as it is reliable in the hand. Its standout button-lock mechanism offers a buttery-smooth, "drop-shut" closing action that makes it an instant favorite for fidgeting.

High-Performance Blade

The 3.11-inch spear-point blade is crafted from premium 14C28N stainless steel, which is highly regarded for its exceptional edge retention, toughness, and corrosion resistance. Whether you are performing precise detail work or everyday utility tasks, the RDF’s flat-ground blade is optimized for clean, efficient cutting performance.

Ergonomic & Lightweight

Designed to disappear in your pocket, the RDF features a contoured handle that provides a secure, natural grip, ensuring comfort during extended use. It is lightweight without sacrificing durability, making it an ideal companion for daily carry in any environment. With its snappy deployment via the flipper tab or thumb hole, the RDF is always ready when you are.

Specifications

• Overall Length: 7.32 inches (18.6 cm)

• Blade Length: 3.11 inches (7.9 cm)

• Blade Material: Sandvik 14C28N Stainless Steel

• Blade Style: Spear Point

• Lock Type: Button Lock

• Action: Caged Ceramic Ball Bearings

• Weight: 3.60 oz (102 g)

• Designer: Alessandra De Santis (Hydra Design)

• Carry: Tip-up Pocket Clip (Ambidextrous)