CRKT P.S.D. (Particle Separation Device), 3.63" Blade, CF/G10 Handle - 7920
CRKT P.S.D. (Particle Separation Device), 3.63" Blade, CF/G10 Handle - 7920

CRKT P.S.D. (Particle Separation Device), 3.63" Blade, CF/G10 Handle - 7920

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The CRKT P.S.D. (Particle Separation Device) is a masterclass in form and function.

Designed by Jim Hammond, this everyday carry folding knife is engineered to slice cleanly and efficiently, thanks to its recurve blade and double grind. The compact G10 and carbon fiber handle provides a comfortable grip for easy handling of the knife. The blade is also assisted with opening for quick access, making it a reliable partner for everyday carry tasks.

The electric blue pivot and pocket clip add stylish touches to the knife. The liner lock is there to guarantee a secure locking mechanism when the knife is open.

The CRKT P.S.D. is an outstanding choice for anyone seeking a powerful and compact cutting tool.


- Full recurve and highly efficient double grind
- Compact G10 and carbon fiber handle with four-finger grip
- Assist Opening mechanism for quick, one-handed access
- Electric blue pivot and pocket clip for urban style
- Liner lock for a secure locking mechanism when in use

Brand: Columbia River (CRKT)
Blade Thickness 0.13
Brand CRKT
Designer Jim Hammond
Model P.S.D.
Model Number 7920
Opener Flipper
Assisted Opened Yes
Blade Color Silver
Blade Edge Plain
Blade Length 3.63
Blade Material 1.4116
Closed Length 4.59
Handle Color Black
Handle Material Carbon Fiber, G-10
Knife Weight 4.6
Knife Type Folding
Lock Type Liner Lock
Point Clip
Total Length 8.19

Columbia River Knife & Tool (CRKT), is a Tualatin, Oregon-based manufacturer of knives, tools, and accessories founded in 1994.

CRKT means Quality. All CRKT knives and tools are built incorporating the most advanced equipment and production systems available, and quality is controlled from beginning to end. Knives are built the way they should be builtļæ½?without compromising quality in any part of their creation. CRKT accessories are crafted to the same standards as the knives, so that each sheath, for example, lives up to the customersļæ½? high expectations.

Sport & Work Knives

CRKT continues to 'think outside the box' by seeking out new and unique designs and mechanisms, just when everyone in the industry thinks they have seen it all. For example, the company is introducing the tiny McGinnis Shrimp, the

Gekkota Pocket and Golf, the ExiTool, Ta-Bar Tool, Norfork Diver and Whitewater, and Klecker NIRKļæ½? all exciting and unusual. At the same time, it continues to broaden itļæ½?s traditional knife models, including for the first time, Classic pocket knives, as well as the Centofante Tribute, Carson M4-02 series, and the Delegate and Vertex lines.

More natural and premium materials.

CRKT is continuing to specify the natural and premium materials that are common in the best custom knives, including more knives

with layered Micarta, G10, stag, jig bone, white bone, ram horn, and hardwoods such as thuya root, cocobolo, ebony, walnut, and burl.

CRKT Limited Lifetime Warranty: This warranty covers any defects in materials or workmanship. If one of our knives ever breaks or fails because of material or manufacturing defect, weļæ½?ll replace the knife. This warranty runs as long as you own your knife. Coverage ends if you sell or otherwise transfer the knife to someone else, or if your CRKT knife is modified in any way.

Customer Reviews

Based on 1 review
Joshua E DSpain
Amazing knife

I gave this knife to each of my team for Christmas. I failed to get one for myself... stupid! This knife is solid, opens beautifully, and comes wicked sharp. It is light and not bulky - perfect for EDC. I am going to be ordering one for myself!