Product Description
Andrew Demko has been building knives that do things other knives do not for a long time, and the Shark-Lock is the clearest example of that. The AD20.5 is his production version of the flagship AD20 mid-tech — slightly smaller, slightly thinner, significantly more accessible, and built around the same patented locking mechanism that changed how serious EDC buyers think about knife locks. The Shark-Lock is a spine-mounted system operated by a ramp-like fin on the back of the blade. Pull the fin back with your thumb and the blade snaps open. The fin then doubles as a jimped thumb ramp when the blade is deployed and locked. The whole sequence is fast, ambidextrous, and keeps your fingers completely out of the blade's path — a detail Demko designed into it intentionally from the start.
The 2.88-inch Slicer Shark blade is CPM-3V tool steel with a stonewash finish. CPM-3V is not a stainless steel — it is a powdered tool steel developed specifically for toughness, edge retention, and resistance to chipping under hard use. It does things most stainless production steels cannot, particularly in demanding EDC and working knife applications. The Slicer Shark blade profile is a recurved design that maximizes belly and cutting length relative to the blade's overall dimensions — more cutting surface in a shorter overall footprint than a clip point or drop point would provide. The ball bearing pivot runs smooth from the first deployment and stays that way. Thumb pull and lanyard hole are both present.
The handle is milled titanium — not cast, not extruded, milled. That process removes material to create precise contours and texture that hold up in a way surface treatments never do. At 4.38 inches closed and 4.02 ounces it sits right where a working EDC should. The reversible tip-up pocket clip handles left or right hand carry without needing to source a separate clip. Knifeworks is an authorized Demko Knives dealer and your purchase is backed by Demko's manufacturer warranty.
• Action: Manual thumb pull — patented Shark-Lock fin deployment
• Lock: Shark-Lock — spine-mounted, ambidextrous, jimped fin doubles as thumb ramp
• Blade: 2.88" CPM-3V tool steel, stonewash finish, Slicer Shark profile
• CPM-3V is a non-stainless powdered tool steel — outstanding toughness and chip resistance
• Slicer Shark profile: recurved design, maximized belly and cutting length
• Pivot: Ball bearing for smooth consistent deployment
• Handle: Milled titanium — precision machined, not surface treated
• Clip: Reversible tip-up — left or right hand carry
• Lanyard hole included
•• Closed length: 4.38" | Overall length: 7.25" | Weight: 4.02 oz
• Designed by Andrew Demko | Made in Taiwan
• Authorized Demko Knives dealer, full manufacturer warranty included
Specifications:
| Product Type | Folding Knife | |
| Brand | Demko | |
| Product Name | AD20.5 Shark Lock | |
| Model # | DEM19286 | |
| Overall Length (in) | 7.25 | |
| Closed Length (in) | 4.38 | |
| Blade Length (in) | 2.88 | |
| Blade Material | CPM-3V | |
| Blade Style | Recurved | |
| Blade Edge | Plain | |
| Blade Finish | Stonewashed | |
| Handle Material | Milled Titanium | |
| Handle Color | Gray | |
| Lock Type | Shark Lock | |
| Clip Position | Tip-Up, R/L Carry | |
| Weight (oz) | 4.02 | |
| Origin | Taiwan | |
| Designed by | Andrew Demko | |
| Blade Range | 2-2.99 |
Warranty Information
Covered by Demko Knives' manufacturer warranty. Knifeworks is an authorized Demko Knives dealer — your warranty is fully supported from the date of purchase.Product Videos
Custom Field
Product Type Folding Knife
Brand Demko
Product Name AD20.5 Shark Lock
Model # DEM19286
Overall Length (in) 7.25
Closed Length (in) 4.38
Blade Length (in) 2.88
Blade Material CPM-3V
Blade Style Recurved
Blade Edge Plain
Blade Finish Stonewashed
Handle Material Milled Titanium
Handle Color Gray
Lock Type Shark Lock
Clip Position Tip-Up, R/L Carry
Weight (oz) 4.02
Origin Taiwan
Designed by Andrew Demko
Blade Range 2-2.99
