Assisted opening knives, or spring assisted knives as they are also known, have become quite popular in recent years.
Assisted opening knife is one of its kind. It is by design a folding knife which opens up the blade by using an internal mechanism.
Once the knife is half opened, it can further be opened up using a thumb stub which is attached to the handle’s side.
Often this knife is mistaken for switchblade knives. Although, in these knives first the user has to open the knife about a quarter of the way before knife itself opens up rest of the way.
They are generally easier to open than a standard pocket knife and can be protected with a safety lock.
The name of this knife is so because of some assistance required by the knife before it completely opens up. At Best Pocket Knife Hub we have reviewed some of the Best Assisted Opening Knives for you.
Smith & Wesson Knife
- Blade Length: 3.6 in
- Overall length: 8.6 inch
- Weight: 7.6 ounces
- 4034 Black Oxide Stainless Steel Blade
- Safety lock
- Handle: Aluminum with rubber inlay
Best of the best
Kershaw Blur Knife
- Blade Length: 3 3/8 in
- Closed Length: 4 1/2 in
- Weight: 4.2 oz
- Sandvik 13C26 stainless-steel
- Inset Liner Lock
- Handle: 6061-T6 anodized aluminum
CRKT M16-10KZ Knife
- Blade Length: 3.00″
- Overall Length: 7.13″
- Weight: 2.3 oz
- 8Cr13MoV Blade
- Veff Serrations
- Automated Liner Safety
- Glass-Reinforced Nylon Handle
How Assisted Opening Knife Works?
Assisted-opening knives are a type of knife that use springs to assist in the opening of the blade. These are automatic knives, but not all automatic knives are assisted-opening.
Automatic knives are spring-assisted, and assisted-opening knives are not.
Assisted-opening knives were designed to allow an individual to open a folding knife one-handed.
In order to be considered an assisted-opening knife, the blade must open automatically when the blade is moved into the fully open position and a button or other mechanism must be pressed by the user.
If the blade opens when pressure is applied to the thumb stud, it is not an automatic knife and therefore not an assisted-opening knife.
How to choose the Best Assisted Opening Knives
The following are tips to help you choose the best assisted-opening knives.
The blade of an assisted-opening knife can be one of several types, including drop point, clip point, spear point or sheepsfoot. When choosing an assisted-opening knife, it’s important to consider the type of blade you want and how it will be used.
If you’ll be using the knife for hunting or fishing, a drop point or clip point is a good choice.
A drop point knife has a straight edge that curves slightly downward toward the tip of the blade.
The clip point also has a straight edge that curves down toward the tip of the blade but does not extend as far.
A spear point has a straight edge that curves up toward the tip of the blade.
A sheepsfoot knife has a straight edge that curves down toward the tip of the blade and is used for skinning animals.
When choosing an assisted-opening knife, consider the length of the blade. Assisted-opening knives are available with blades that range in size from two to seven inches.
The blade on an assisted-opening knife should be no shorter than three inches and no longer than seven inches.
A five-inch blade is a good choice for most people because it’s long enough to cut through material such as rope and cardboard yet short enough to carry easily.
When choosing an assisted-opening knife, consider the blade style. Assisted opening knives are available with a variety of blade styles, including plain edge, serrated edge and partially serrated edge.
A plain edge has no serrations along the top of the blade.
A partially serrated edge has serrations along the top of the blade that extend less than halfway down the length of the blade.
The fully serrated edge has serrations along the entire length of the blade.
A plain or partially serrated edge is a good choice for people who want a blade that’s capable of cutting through material such as rope and cardboard.
A serrated edge is not a good choice for people who want a knife for self-defense.
When choosing an assisted-opening knife, consider the material used to make the handle. Assisted-opening knives are available with handles made of a variety of materials, including aluminum, brass, fiberglass and plastic.
Aluminum is light and strong and is a good choice for people who want a light knife. Brass is durable but heavy and is a good choice for people who want a heavy knife.
Fiberglass is a lightweight material that doesn’t conduct heat or cold well and is a good choice for people who live in areas where there’s extreme heat or extreme cold.
Plastic is lightweight, inexpensive and easy to grip but may be slippery when wet and is a good choice for people who want to avoid the risk of cutting themselves when the knife is wet.
When choosing an assisted-opening knife, consider the locking mechanism. Assisted-opening knives are available with several different locking mechanisms, including frame lock, liner lock and slip joint lock.
A frame lock has a spring-loaded bar that extends from the handle across the back of the blade and locks into place over a notch in the blade.
A liner lock has a spring-loaded bar that fits into a groove in the back of the blade and locks into place over a notch in the blade.
Slip joint lock has a spring-loaded bar that locks into place over a notch in the blade but doesn’t extend from one side of the handle to the other.
A frame lock is a good choice for people who want a knife with a locking mechanism that will keep the blade from accidentally closing during use.
The liner lock is a good choice for people who want an assisted-opening knife that’s easy to open and close.
A slip joint lock is a good choice for people who want an assisted-opening knife that’s easy to open but not as easy to close.
Consider the Price
Assisted-opening knives are available at a variety of price points, from less than $20 to more than $300. If you’re on a tight budget, a less expensive knife may be a good choice for you.
If you have the money to spend, an assisted-opening knife with a higher price tag may be worth the investment because it will likely last longer and be easier to use.
Assisted-opening knives that cost between $20 and $50 are good choices for people who want an inexpensive assisted-opening knife that will get the job done.
Assisted-opening knives that cost more than $100 are good choices for people who want an assisted-opening knife that will last a long time, be easy to use and be made of durable material.
Top Assisted Opening Knife Reviews
Kershaw Ken Onion Blur Folding Knife
The Blur series of Kershaw knife is known for its excellent power and performance. The knife is 5.5 inches x 2.5 x 1 inches, and the overall weight is just 4.2 ounces. The 3 3/8 inches long blade has been carved from Sandvik 14C28N Steel which gives it its strength and rust resistance.
The blade can be smooth or serrated depending on your wish. The handle on this knife is made of lightweight anodized aluminum which has Trac-Tec inserts in it. These inserts provide an excellent grip in any weather conditions.
The opening system on this knife is the patented Kershaw’s SpeedSafe assisted opening system. It ensures a smooth opening of the knife which requires a mere manual push on the blade’s thumb stud. For safety, there is the SpeedSafe’s torsion bar which helps keep the knife closed and in position.
All these mechanisms ensure a smooth opening of the blade, and then they make sure the blade locks into its position. We loved the pocket knife and so makes it on our best-assisted opening knives guide. It also featured on our Best EDC Knife 2018 guide.
Smith & Wesson SWMP4LS
The Smith & Wesson have always been the leading knife manufacturers ever since their start. And this folding knife is living proof of their consistency and success. This knife features a 3.6 inches long blade which is made of stainless steel. The blade has been observed to be appreciably rust resistant.
The blade is a combo edge blade and has a 4034 Black finish on its mainframe. The 5 inches long aluminum handle on this knife is state of the art. It provides very comfortable and sturdy grip of the knife.
This knife is accompanied by a thumb knob finger actuator, a glass breaker, and a safety lock. There is also a liner lock which is 8.6 inches long, and it ensures the blade stays in its position.
Carrying this knife is made very convenient by the pocket Clip. The Magic Assisted Opening System of this knife helps fold open the blade with ease and single-handedly.
Columbia River Knife
This is one knife which boats a 3.1 inches long samurai shaped blade. It is in its way a classic. The plain blade is made of AUS 8 stainless steel.
The satin finish of the blade makes it easy to conceal and carry with convenience. Also, it has been weighed to be just 3.6 ounces.
The overall length of the knife is 7 inches with a 4 inches long handle attached to it.
The handle on this pocket knife is a black G 10 handle. The scales on this handle are textured to provide a secure grip for the user.
The knife is accompanied by a few perks- an outburst assist, an ambidextrous thumb disk opener and a pocket clip made of stainless steel.
This thumb disk facilitates rapid opening of the knife single handedly with either of the hand. Also, the custom made stainless steel clip is ambidextrous and can be easily mounted with a single screw, this has to be one of the best-assisted opening knives. We loved it so much we mentioned it in our Best Boot Knife guide as well!
Kershaw 1990 Brawler Folding SpeedSafe Knife
Doing it with style is the motto of Kershaw 1990 brawler. It’s not just the amazing looks; the Brawler also offers a SpeedSafe assisted opening system.
The opening system facilitates easy access to the knife using the built in flipper or the convenient thumb stud. The blade on this knife is a modified version of traditional tanto style blade.
It also boasts an extra thick tip which ensures potent piercing capabilities.
For, the handle is made of molded glass filled nylon which provides extra strength and reduces the weight effectively. The solid locking liner on this blade gives a secure feel to the blade.
Ever since its entry in the market of knives, Kershaw has always guaranteed quality. With the 1990 brawler it has proved it yet again.
Like all Kershaw products, the brawler is also guaranteed for a lifetime of exceptional performance.
Kershaw 1670S30V Blur Knife
Following the footsteps of all Kershaw knives, this knife is also one of the safest and sturdiest knives available in the market.
The knife measures 7 7/8 inches in fully opened condition and weights around 4 ounces.
The Kershaw blur folding knife has been crafted out of S30V stainless steel which has a stonewash finish on it. The patented SpeedSafe assisted opening system is makes handling of the knife easy for both right and left handed people.
The handle on this knife provides a comfortable grip for the user. Also, the Trac Tec inserts on the handle ensure effective handling in wet conditions.
Most knife injuries are because of a poor grip on the knife, but this knife has an effective locking liner which holds the knife blade firmly in its place.
There is an additional feature accompanying this knife, the reversible pocket clip. This clips with the handle towards the inside of your pocket.
Choosing the best assisted opening knife or any pocket knife for that matter can be a very confusing venture for a first timer.
Even the experts of knives can be confused with the wide range of available options in the market. One thing that needs to be kept in mind while buying any knife is that you opt for the best.
Always research and take a look at the review of knives which you consider as options.
Also, always remember to check in with the knife laws of your state or the place you are traveling to.