Demko Knives AD20.5 Shark Foot AUS10A DLC Shark Lock Black Grivory Folding Knife Folder

Demko Knives AD20.5 Shark Foot AUS10A DLC Shark Lock Black Grivory Folding Knife Folder is a project of American knifemaker Andrew Demko.

Andrew Demko is a creator appreciated for the projects of innovative locks in folding knives and a manufacturer of custom knives. His products are characterized by above-average durability and creativity. Since 2021, Demko Knives offers production versions of its knives from the AD20.5 series, equipped with the latest, extremely durable, exclusive Shark Lock™ mechanism.

Presented Demko Knives AD20.5 Shark Foot AUS10A DLC Shark Lock Black Grivory Folding Knife Folder has shark foot (sheepsfoot) blade made of Japanese AUS10A stainless steel with black DLC coating and an black grivory handle and a Shark Lock ™ mechanism.

About Demko Knives

Andrew Demko has been creating innovative locking mechanisms for knives and the knives themselves for over 25 years. The Demko Knives offer includes knives for survival, outdoor activities, everyday use, etc., characterized by outstanding durability and ingenuity of solutions. The last, most recent innovation designed and made by Andrew Demko is the Shark Lock™ mechanism, which has been implemented in the AD20 (custom made) series of folding knives and AD20.5 production folding knives.

Shark Lock™ in AD20.5

The Shark Lock™ mechanism designed and engineered by Andrew Demko mechanizm Shark Lock™ is designed to easily open and close the knife with one hand. In combination with ball bearings, grivory grips mounted on steel liners, we get a free-working knife that will handle most tasks!

The Shark Lock™ mechanism is situated on the spine of the knife and operated with a ramp-like ‘fin.’ Opening the blade makes the spring-driven lock arm move up and then into a notch in the tang, situating it beneath a lock pin. This range of movement is noteworthy. It’s unique in that the locking mechanism moves forward and back while also moving up and down. This allows for a greater sized blade tang, making better mechanical advantage in a specific area. And because the drive spring that moves the locking element up into the locked position is contained within the locking arm itself, it won’t be subject to dirt and grime. The Shark is very comparable to most Tri-Ad locks for its size and weight. The AD-20.5 has been tested to 875 inch pounds of torque (10 kg/m), this is a very impressive number for a 3.5 oz. (100 g) knife.

About presented folding knife

Shark foot (sheepsfoot) AUS10A steel blade

The knife blade has a sheepsfoot profile, by Demko Knives defined as a shark foot for consistency of the nomenclature used in projects (association with the Shark Lock ™ ). A blade of this type ensures maximum use of the most protruding point of the cutting edge, which helps in making reliable and precise cuts. It is made of Japanese AUS10A steel, characterized by a very high degree of corrosion, easy to sharpen and maintain. The blade features jimping, which is a support for the thumb during cuts that require pressure.

The knife has been coated with a black DLC coating (Diamond Like Carbon coating with hardness ~90 HRC), which additionally strengthens the steel and improves anti-corrosion properties. The coating has anti-reflective properties.

Knife opening

The knife is opened by means of a double-sided pin mounted in the blade (thumb stud) or a hole (hole stud) placed in it, or in a faster way, by a simultaneous vigorous hand movement and pulling the Shark Lock ™ fin. The producer made it possible to select the opening method to individual preferences.

Grivory handle scales and steel liners

The handle covers and the backspacer are made of durable grivory material and mounted on a steel body (liners). The handle has a hole for a paracord, string, lanyard, etc., or an optional attachment of ornaments depending on the user’s preferences.

Carrying clip for right and left carry

The knife is equipped with a steel wearing clip, enabling stable carrying in a pocket, mounting in a backpack, organizer, kidney, etc. Included with the knife is an additional clip for left-handed users.

Cordura zipper pouch

In the set, along with the knife, the user receives a cordura organizer with a Shark Lock ™ Demko Knives patch, a microfiber cloth for cleaning the knife, an additional carrying clip (as mentioned above) and a Shark Lock ™ Demko Knives sticker.

NAME: AD20.5 Clip Point
STEEL: AUS10A
BLADE FINISH: Black | DLC

HANDLE: Black Grivory
TOTAL LENGHT: 194 mm | 7.65″
BLADE LENGHT: 81 mm | 3.15″

BLADE THICKNESS: 3,2 mm | 0.125″
LOCK: Shark Lock™
OPENING: Thumb stud | Thumb hole | Shark Lock Ramp Flipper

CARRYING CLIP: Available
WEIGHT: 101 g | 3.56 oz
SHEATH: Cordura Zipper Pouch