Demko Knives AD20.5 Sharksfoot Plain Edge Black FRN Shark Lock Folder

Model #: DK-AD20.5-SF-BLK
Brand: Demko Knives
Out of stock


Custom knife maker and long time collaborator with Cold Steel knives, Andrew Demko starts a new path with his first full production knife, the Shark Lock equipped AD20.5. A more compact version of his popular AD20, the AD20.5 comes in a smaller, EDC-friendly package. Demko developed and refined the innovative Shark Lock for over a decade to deliver exceptional strength and smooth operation. The “Sharksfoot” blade is a modified Sheepsfoot with reverse Tanto point featuring a Black FRN handle.

Brand new, direct from Demko Knives.

Blade: The stainless steel Sharksfoot blade has a wear hiding stonewashed finish and high saber grind that balances durability and performance. Modified with a piercing reverse Tanto point, the Sheepsfoot profile has a nearly straight plain cutting edge for powerful slicing. The blade opens smooth on a ball bearing pivot via the dual thumb studs, ambidextrous blade hole or Shark Lock mechanism.

Handle: Partial stainless steel liners support the durable, lightweight, and weather resistant diamond textured black FRN handle scales with an index guard, subtle finger grooves and pinky hook for a solid, secure grip. The Shark Lock mechanism delivers rock solid lockup and ease of operation. The ambidextrous lock is simple to operate: pull back on the “fin” ramp to disengage. Rest assured, the AD-20.5 has tests to 875 inch pounds of torque! 

Includes two tip-up (L/R) stainless steel pocket clips.

Japanese AUS-10A Stainless Steel: Similar to AISI 440C, AUS10 offers excellent corrosion resistance, good edge retention and easy sharpening. For AUS-10A, the “A” at the end indicates the steel gets annealed after the rolling, which does not affect the blade performance.

Shark Lock mechanism: Located on the spine of the knife, the Shark Lock has a spring-loaded fin like ramp that moves in two planes, allowing for a larger blade tang for greater strength. When opening, the lock arm moves around the tang and comes to rest in a tang notch under the lock pin. Pulling the fin back disengages the lock arm for closing the knife. An internal spring location protects from dirt and debris that could impair lock operation.


Knife Action Manual
Brand Demko Knives
Overall Length 7.50"
Blade Length 3.00"
Sharpened Length 2.75"
Blade Thickness 0.13"
Blade Material AUS-10
Blade Type Stainless
Blade Grind Flat
Blade Finish Tumbled
Pivot Bearings
Lock Type Shark-Lock
Lock Mechanism Demko Shark-Lock
Closed Length 4.50"
Handle Thickness 0.40"
Handle Material Polymer
Hardware Stainless Steel
Liner(s) Stainless Steel
Clip Material Stainless Steel
Clip Position Tip-Up
Weight 3.55 oz.
Sheath Weight 3.00 oz.
Condition New
Country of Origin Taiwan