The Tekto A3 Delta is a full‑size automatic folding knife engineered for durability, control, and rapid deployment in demanding conditions. The serrated drop‑point blade measures 3.60 inches and is manufactured from D2 tool steel with a titanium coating, hardened to a range of 60–62 to enhance edge retention, wear resistance, and cutting longevity. Serrations add functional versatility for fibrous materials such as rope and webbing. Blade deployment is driven by a push‑button automatic mechanism that delivers fast, consistent opening, reinforced by an integrated safety switch that helps prevent accidental activation. Overall open length measures 8.90 inches, providing substantial reach and leverage.

The handle is constructed from G10 and features ergonomic contours with strategic jimping to promote a secure, confident grip under stress. Handle length measures 5.20 inches with a slim 0.54‑inch width, balancing full‑size control with efficient carry at an overall weight of approximately 5.96 ounces. Integrated features include a glass breaker, lanyard hole, and ambidextrous pocket clip to support emergency use and flexible carry preferences.