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10 Best Assisted Opening Knives of 2019

The entire base of an assisted opening knife is convenience and speed. Spring Assisted knives were introduced to the market to provide knife enthusiasts with a knife that was quick to deploy, safe to handle, and most importantly – legal in the United States.

Before we get into the actual topic, lemme introduce myself. My name is Brandon & I’m a knife collector. In this article, I’ve listed best assisted opening knives that deliver performance and these are best in quality for their respective price range.

These assisted knives offer a quick and convenient way to handle your everyday tasks or chores. I’ve kept the article short but very interesting and informative so that it doesn’t bore you. I recommend you reading this article completely to make a better purchase.

The Best Assisted-Opening Knives:

Photo
Model
Blade Length
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KERSHAW CRYO 2
3.25 inches/center>
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Kershaw Ken Onion Leek
3 inches
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Kershaw Ken Onion Blur
3-3/8 inches
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SOG Aegis AE02-CP
3.5 inches
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SOG Flash II
3.5 inches
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Gerber Covert Knife
3.70 inches
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Smith & Wesson SWMP4L
3.6 inches
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Zero Tolerance ZT0350TS
3.25 inches
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Alpha Tek Spring Assisted
3.38 inches
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Kershaw 1990X Brawler
3 inches
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1. Kershaw Cryo 2

Kershaw is a giant in the knife industry. The quality and variety they bring to the table is commendable. Kershaw Cryo || is my first pick if you’re tight on the budget. The design, quality, and the premium aesthetic make it a great choice.

Specifications of the Kershaw Cryo ||​

  • Country of Origin: China​
  • Blade length: 3.25 inches
  • Closed length: 4.4 inches
  • Overall length: 7.75 inches
  • Blade Material: 14C28N stainless steel
  • Locking Mechanism: SpeedSafe
  • Handle Material: 410, titanium carbo-nitride coating

The assisted action of Cryo || is as smooth as butter, perfectly solid lockup, a nicely ground blade that doesn’t require frequent sharpening & has a great deep carry clip. The handle is simple and feels good in the hands, but it makes an average grip. It weights a little heavy and needs work on the handle to make a better grip but for the price point, it does justice. It’s also one of our best pocket knives since 2016.

2. Kershaw Ken Onion Leek

​Kershaw Ken Onion Leek is an ideal size EDC assisted knife with 3 inches of blade. It’s very slim and sleek in design which give it very aesthetically pleasing look. Unlike Kershaw Cryo ||, it is built in the USA. The drop point blade design makes it compatible for the detailed work.

​Specifications for the Ken Onion Blur

  • Country of Origin: USA
  • ​Blade length: 3 inches
  • Closed length: 4 inches
  • Overall length: 7 inches
  • Locking Mechanism: SpeedSafe
  • Blade Material: Sandvik 14C28N, bead-blasted finish
  • Handle Material: 4410 stainless steel, bead-blasted finish

The blade is razor sharp out of the box. The assist function operates well but takes some time to get used to. The stainless steel, size, and all other attributes make it a great knife. ​The assist function is a little bit tricky. If the lock is left off, the opening mechanism acts like a switchblade blade, and this might get you in trouble because it opens quick; thus you might end up getting a cut on your finger. The reversible pocket clip makes it convenient for everyone.

3. Kershaw Ken Onion Blur

​Kershaw Ken Onion Blur is a multitasking knife because of its blade’s design. The blade is slightly curved at drop point which makes compatible for slicing and piercing at the same time. Kershaw Ken Onion Blur comes with the plain edge and serrated edge (both prices are different).

​Specifications of The Kershaw Ken Onion Blur

  • Country of Origin: USA
  • ​Blade length: 3-3/8 inches
  • Closed length: 4-1/2 inches
  • Overall length: 7-7/8 inches
  • Blade Material: Sandvik 14C28N, DLC coating
  • Locking Mechanism: SpeedSafe
  • Handle Material: 6061-T6 anodized aluminum, Trac-Tec inserts

Kershaw Ken Onion Blur has two blade types: serrated edge and plain edge. The Blur has a very sharp blade, and handle facilitates good traction, unlike Ken Onion Blur. Edge retention is incredible and assisted opening mechanism is incredibly smooth.

​Overall, I love Ken onion blur, but one thing people and I hate about Ken Onion Blur is the pocket clip. It’s not tight; you might have to tighten it up frequently. I would recommend carrying Blur in the front pocket because of the clip.

4. SOG Aegis AE02-CP

​SOG Aegis AE02-CP is a small spring assisted knife constructed with straight edge blade. If you don’t like Kershaw, for whatever reason, then SOG in another reliable and popular knife brands that you can go with.

​Specification of The SOG Aegis AE02-CP

  • Assembling: USA
  • Blade length: 3.5 inches
  • Closed length: 4.75 inches
  • Overall length: 8.25 inches
  • Blade Material: AUS-8 stainless steel
  • Handle Material: Glass-Reinforced Nylon
  • Locking Mechanism: SpeedSafe

Despite being small and light, the build quality is amazing. It opens quickly and smoothly, I’ve been using it for about a year now and it still works fine. The blade is sharp and constructed of quality AUS-8 stainless steel which cuts through fish, apple, and box smoothly. Overall, its value for the money (Also, it comes with a lifetime warranty!)​

5. SOG Flash II

SOG Flash is the best value assisted knife. SOG Flash II is bang for the bucks with attributes like lightweight, excellent ergonomics, and spring opening mechanism. If you’re tight on the budget, then SOG Flash II is potentially your best choice.

Specification of The SOG Flash II

  • Assembling: USA
  • Blade length: 3.5 inches
  • Overall length: 8 inches
  • Closed length: 4.5 inches
  • Blade Material: AUS-8 Stainless Steel
  • ​Handle Material: Glass-Reinforced Nylon
  • Locking Mechanism: SpeedSafe

It’s a cheap knife with good quality material. The steel and the blade is not comparable to the top models, but it does the job with ease for regular everyday tasks like cutting rope, slicing through vegetables, and opening boxes.

The blade is fragile as compared to other models; you can’t use it for heavy-duty tasks. Though the handle is constructed of nylon, it still feels good in hands (no plastic feeling) and also makes it very durable in long-term.​

6. Gerber Covert Knife

The Gerber Covert is Backed by the speed of F.A.S.T technology, which is used for quick one-hand opening deployment of the titanium-coated blade and G-10 handles that give you a tacky grip (G-10 is my favorite material for handle).

Specification of the Gerber Covert

  • Assembling: USA
  • Blade length: 3.70 inches
  • Closed length: 5 inches
  • Overall length: 8.70 inches
  • Handle Material: G-10
  • Blade Material: Titanium-Coated Blade
  • Locking Mechanism: F.A.S.T. Technology (Forward Action Spring Technology)​

If you need a serious one hand assisted opening knife, then Gerber Covert is what I would recommend to you. It is extremely fast and reliable as compared to the models mentioned above. The handle is constructed of a G-10 material which provides solid grip and nice ergonomic feel.

It is a little heavy, though.

The Gerber covert has a lock button which is needed to be deactivated before opening or closing the knife which sometimes feels annoying when you’ve to do it every single time. For the price point, it justifies everything.​

7. Smith & Wesson SWMP4L

​Smith & Wesson SWMP4L is a big assisted knife built for military and police, i.e., tactical work. This knife is big and bulky and can be used to break the window of a car. If you need a knife for medium duty tasks, then this knife is what I would recommend you.

​Specification of the Smith & Wesson SWMP4L

  • Made in Taiwan
  • Blade length: 3.6 inches
  • Closed length: 5.0 inches
  • Overall length: 8.6 inches
  • Blade Material: 4034 Stainless Steel
  • Locking Mechanism: M.A.G.I.C. Liner Lock
  • Handle Material: Black Aluminum Handle with Black Rubber Inlay​

SWMP4L is a part of the M&P (Military and Police) series; therefore, making it a combat knife. It features a glass breaker tip. The blade is very sharp and retains the edge for a long period of time. It can be used for small and medium heavy weight tasks. The opening mechanism is just MAGIC.

This knife is super durable which makes it more convenient to be on this list. The indent in the clip is short and deep which makes drawing and re-clipping a hassle. The other problem might be the overall size and bulkiness which kinda takes it off from the everyday carry selection.​

8. Zero Tolerance ZT0350TS

​Zero Tolerance has to be in my list, undoubtedly. ZT0350TS is a plain edge assisted knife, and the updated version of Zero Tolerance ZT0350TS is 10% smaller and lighter than original; non-serrated blade with Tiger Stripe finish (I’ve purchased it; currently testing it).

zero tolerance ZT0350TS
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Specifications of the Zero Tolerance ZT0350TS​

  • Country of Origin: USA
  • Blade length: 3.25 inches
  • Closed length: 4.625 inches
  • Overall length: 7.76 inches
  • ​Locking Mechanism: SpeedSafe manual assist
  • Handle Material: textured matte black G-10 handle
  • Blade Material: S30V stainless-steel with Tungsten DLC coating

If you need a high-end assisted opening pocket knife or EDC knife then this knife is the best. It has a razor-sharp blade; a great finish which makes it durable against scrapes and it wears nice. The spring mechanism gives a great experience. The handle is constructed out of G-10 material which gives a nice grip and feels great in hands.

It’s little hard to sharpen the blade as compared to others – unless you’re a very experienced sharpener. The spring wears out with time, for me, but a limited lifetime manufacturer’s warranty saved me.​ The newer version is still in testing and so far everything is good.

9. Alpha Tek Spring Assisted

Alpha Tek is a unique knife because it comes with a bottle opener drop point blade. I’m not really sure how would you react to it, but I’ve it in my collection, and I used it for like six months regularly and still use it. If your work includes a bottle opening, then this knife is for you.

alphatek spring assisted

Specifications of the Alpha Tek:

  • Country of Origin: USA
  • ​Blade length: 3.38 inches
  • Closed length: 5 inches
  • Overall length: unknown
  • Locking Mechanism: Spring Assisted
  • Handle Material: G-10 handle
  • Blade Material: 440C High Carbon Steel

The blade is tough, and the knife feels sturdy. The blade opens smoothly. The blade design is constructed in a way that people can open the cap of the bottle, and it works both ways, i.e., opened and closed.

Since it’s a high carbon steel knife, therefore it does rust quickly, but if you live in the hot climate, then it shouldn’t be a problem. The other downside is the serration, serrations tear and don’t cut.​ By the way, you can check here the list of carbon steel pocket knives.

10. Kershaw 1990X Brawler

​If your budget is little to no, then Kershaw 1990X Brawler is my top pick for you. I know you can find more models for the low price but believe me the spring will come out quickly and those knives will be very fragile.

Specifications of the ​Kershaw 1990X Brawler

  • Country of Origin: USA
  • Blade length: 3 inches
  • Closed length: 4.1 inches
  • Overall length: 7.1 inches
  • Handle Material: Glass-filled nylon
  • ​Locking Mechanism: SpeedSafe
  • Blade Material: 8Cr13MoV with black oxide coating

Kershaw 1990x would be the right choice if your budget is meager and you won’t be using it on a daily basis. The knife is very built; everything is screwed tightly and correctly. It makes a decent grip for people with small hands so you can consider it more of a female pocket knife.

​Everything about this knife is decent, don’t expect much. The spring opening works great, but it is quite fragile. The blade is sharp, but it will rest quickly because of 8Cr13MoV steel.

Buyer Guide:

Thumb stud or blade button – these implements allow for fast, one-handed opening of assisted knives and are used to begin the blade opening process.

A spring or lever is then automatically engaged to complete the blade’s travel through the full opening arc. Thumb studs make knife opening quite simple, while blade buttons accomplish the same process via a slightly different hand motion.

A variety of blade designs – Assisted knives are varied in their blade offerings. If you’re looking for an assisted knife to use as an everyday carry option (EDC), a semi-serrated model with a drop point or clip point blade may serve you well.

Those with more specific needs may want to investigate available blade options like rescue/safety blades, full serrated options, dagger point, utility blades, or Tanto options.

Lightweight construction – These knives are usually designed to be deployed quickly and complete everyday tasks with ease.

Essentially these knives are not constructed for heavy chores like you’d experience during a camping trip, but they are perfect for cutting rope, opening packages, and appropriate defensive maneuvers.

Durability: This is the important aspect to consider before you make a purchase. The durability of the knife is measured by how well it performs or maintains its quality over the time after being used for a long time.

All the blades we mentioned above have excellent durability power because these blades are made up of quality steel. These blades will work for a long time and will not damage quickly.

These blades used for best assisted knives are super durable. Remember, an exception is always there. I’ve listed the downside of each knife so if you like a knife then read my views about it.

Size: Well, size always varies from person to person. Few people have got small hands and few big. But, the size for best assisted opening knives is usually around 3 inches. The knives I mentioned above is listed for everyone. So, there is something for everyone.

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5 thoughts on “10 Best Assisted Opening Knives of 2019”

  1. I prefer Kershaw Ken Onion Leek because its overall size is very handy and blade length is just fine. I always been Kershaw’s fan girl. Thank you, Brandon!

  2. SOG Aegis AE02-CP is absolutely a beast. The 3.5 blade length is just perfect. I will use it as an EDC, Do you think its durable enough for simple to medium tasks? thanks 🙂

    • Lucio, yup its absolutely durable for light and medium tasks. Expect life span of 2-3 years with light use. you’re welcome!

  3. Good Review. Appreciate the summary including blade length.
    Just may pick up a Gerber Cover due to your review.
    Thank you.

  4. Hello: I just acquired a beautiful Bear Grylls Survival Spring Assisted Knive. And it has a very fast action in deployment. Comes with a Safety which is excellent if you carry it clipped onto your pocket. Ergonomic designed perfectly. The bright orange colour of the handle is highly visible in the bush.

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