Zero Tolerance 0640 Emerson Folder Knife, CPM-20CV Satin Blade

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SKU:
ZT0640

The Ernest Emerson designed 0640 is one of many new models released by Zero Tolerance in the tail end of 2018 and is a fresh new take on the classic EDC platform while making sure it stands out from the competition with the attributes and style. Each 0640 features an ultra-premium stainless steel blade that is deployed solely with a thumb disk complete with a titanium frame lock and hardened lockbar insert. This model features green carbon fiber composite overlay atop a stonewashed titanium frame, a clip point style blade in a satin finish with stonewash finished blade flats and the reversible pocket clip is designed for tip up carry only but is eligible for a left or right hand carry option. Made in the USA.

SPECIFICATIONS:

  • Blade Length: 3.75"
  • Overall Length: 8.5"
  • Blade Material: CPM-20CV Stainless Steel
  • Blade Finish: Satin / Stonewash
  • Handle Length: 4.75"
  • Handle Material: Titanium / Carbon Fiber
  • Weight: 4.4 oz.

The Zero Tolerance 0640 Emerson Folding Knife [New Arrival]

 

            Zero Tolerance is a brand of Kai USA Ltd. The ZT brand first made its appearance in 2006 when they saw a place in the market for a Made-in-the-USA lien of hard-use knives that would meet the needs professionals in the military and law enforcement, as well as other first responders, such as firefighters and emergency medical personnel.

            The initial products were combat knives, but since that time, the lien has expanded to include a variety of general use and premium knives. Form larger and heavier outdoor knives to slimmer and lighter everyday carrying knives that are built to ZT’s high-performance standards, ZT knives always provide knife owners with top-of-the-line quality.

            Zero Tolerance knives are manufactured with premium materials such as S30V, S35VN, or 20CV blade steel as well as G10, titanium, and carbon-fiber handle scales. They pay attention to details, ensuring each part of your ZT is built with care and precision. Operation is conspicuously smooth and ZT fit and finish is second to none. All of their knives are proudly built in their Tualatin, Oregon USA manufacturing facility by their most skilled workers.

            Today we are talking about the Zero Tolerance 0640 Emerson folding knife, which is a new arrival at BladeOps. This new knife is in stock at BladeOps right now, so hurry on over to purchase yours today.

 

The Blade:

            The blade on the 0460 is made out CPM-20CV steel. This is made by Crucible, who are known for making high end steels for high end knives. I would count this steel as a premium or even an upper-end premium steel.

            This steel is considered to be Crucible’s M390 steel. This is a Powder Metallurgy tool steel, which means that it is going to give you a good combination of wear resistance as well as edge retention. Plus, the steel is also incredibly corrosion resistant because of how much chromium it has in the steel.

            When Crucible describes this steel, they say, “CPM 20CV is a unique tool steel made by the Crucible Particle Metallurgy Process. It is a martensitic stainless steel with a high volume of vanadium carbides for exceptionally good wear resistance. CPM 20CV contains the highest amount of chromium of any high vanadium stainless steel currently available. The chromium rich matrix provides outstanding corrosion resistance. CPM 20CV an excellent steel for plastic injection feed screws, barrel liners, screw tips and mold cavities, especially for plastic resins which contain abrasive fillers.”

            This is just explaining how high-end the steel really is. It is crazy corrosion resistant, has crazy high levels of wear resistance, and basically, gives everything that you could want from a blade steel.

            They describe the CPM process by saying, “The CPM process results in a finer, more uniform carbide distribution imparting improved toughness and grindability to highly alloyed steels. The CPM process also alloys for the design of more highly alloyed grades which cannot be produced by conventional steelmaking.”

            Really, what this does is enhance the rest of the blade formation. All of the good qualities are made better when the steel has gone through the CPM process.

  • Crucible is known for high-end steels for high-end knives.
  • Highly corrosion resistance.
  • High levels of wear resistance.
  • CPM process makes it easier to sharpen and work with.
  • CPM process also enhances the rest of the high-end qualities that it already had.

 

The blade has been finished with a  stain finish, but the flats of the blade have been finished with a stonewash finish.

            The satin finish is the most common blade finish that you are going to come across in the cutlery industry today. This is because it has a traditional look that you cannot find in other finishes. The finish sir created when the manufacturer repeatedly sands the blade in one direction with an increasing level of a fine abrasive, which is normally a sandpaper. This works to showcase the fine liens of the steel while also showing off the bevels of the blade. Not only that, but it also slightly reduces the glares and reflections that the blade would normally have. Lastly, the satin finish does increase the corrosion resistance of the blade slightly.

  • Increases the corrosion resistance.
  • Reduces the glares and reflections.
  • Creates a traditional look that you cannot find anywhere else.
  • Shows off the fine lines of the steel and the bevels of the blade.

 

The stonewashed finish is on the flats of the blade. This finish gives a more rugged and well-worn look than the satin finish would. It is created when the steel is tumbled with small pebbles, which creates a textured look. It is this textured look that hides scratches and smudges that would normally occur. This means that the blade is going to keep its original look for longer than most other finishes would offer. This finish also cuts down on glares and reflections. However, it does not offer the same amount of corrosion resistance that other ones would.

  • Stonewashed finish prolongs the original look of the blade.
  • Cuts down on glares and reflections.

 

The blade on the 0640 has been carved into a clip point blade style. The clip point blade shape is a great all-purpose blade. It is also the most popular blade shapes that you are going to find on the market.

            The shape of the clip point blade shape is made up with a spine that extends to about ¼ of the way up the knife, before it angles down gently to the point. This area looks as if it is cut out, or clipped out, and is referred to as the clip. This is where the blade shape got its name from.

            The clip also creates a lowered point, which is going to give you more control when you are using the knife. Plus, the tip is controllable, plus sharper and thinner at the spine, which is why the clip point blade shape is going to excel at stabbing. These characteristics lend themselves well to less drag during insertion and withdrawal.

            One of the other reasons that makes this a good all-purpose knife is that it has a large belly that makes slicing easy. The bigger the blade, the easier it is to slice with. Also, slicing is going to be one of the most common actions that you perform with an EDC knife.

            The only real disadvantage the clip point blade shape has is that it does have a very narrow tip. Because of how narrow it is, it can be easy to break because of how weak it is. Other than that, the blade shape offers a wide variety of benefits.

  • The tip is sharp and thin enough to excel at piercing.
  • The tip is lowered, which gives you more control.


The Handle:

            The handle is made out of both titanium as well as a carbon fiber composite overly.

            Titanium is a very common high-end knife handle material because it is very durable. It is considered a lightweight metal alloy. This is the same as aluminum, although titanium is significantly heavier than aluminum. With a smaller knife like this one, the extra weight provides a little extra heft along with a lot of extra strength. Titanium also offers the highest rust resistance of any metal. This is an advantage because it keeps the maintenance time down significantly on this knife.

  • Titanium is strong and durable.
  • Titanium is lightweight and extremely corrosion resistant.
  • Titanium is prone to scratches.

 

The rest of the handle is made out of carbon fiber. This is a material that is made out of thin strands of carbon that have been tightly woven together and then set in a resin. This process yields a material that it incredibly strong, yet still lightweight. Although, with the work it takes ot produce it, it does increase the cost considerably. Even though it is very strong, it does suffer from being brittle. This is because all of the fibers are arranged in a single direction. This means that the material is very strong in that specific direction, but will begin to break apart when stressed in a different direction.

            The carbon fiber is a pattern made up of dark grey as well as a green. This carbon fiber inlay adds in the need texture that titanium does not offer. There is also a row of jimping on the spine that will help with grip. There is a slight finger groove that will provide a little bit more comfort when you are working with this knife.

  • Carbon fiber is strong and lightweight.
  • Carbon fiber is brittle and expensive.
  • There is a row of jimping for added control.

 

The Pocket Clip:

            The pocket clip is reversible. It has been designed for tip up carry only, but it is eligible for either left or right hand carry options. The pocket clip is a dark grey, which does match the rest of the aesthetic well. The blade is a darker silver and there are dark grey accents on the handle. It is slightly skeletonized to cut down on weight. It also flares out at the top and bottom, which will help it stay securely in your pocket. This is not a deep carry pocket clip though.

            It is kept in place by three black screws, which do match the rest of the hardware on the knife.

  • Reversible pocket clip for left or right handed carry.
  • Only can be attached for tip up carry, which is the more dangerous way to carry it.
  • Not a deep carry pocket clip.
  • Black hardware.

 

The Mechanism:

            This is a manual folding knife To assist you in opening the knife, there is a thumb disk that will give you the grip and traction needed to swing the knife open. It has also been equipped with a frame lock locking mechanism.

            The frame lock is similar to the liner lock, except that it is much stronger. Instead of a liner inside, the lock is actually made up of the handle. The handle on this is titanium, so it is going to be extra strong. If you are trying to close this knife, you will push down on the spring bar so that it no longer blocks the butt of the blade, then remove your thumb from the path. Lastly, you will be able to fold the knife closed.

  • Thumb disk to give you the traction needed to open the blade.
  • Frame locks are beefy and strong, ensuring a strong lock-up.

 

The Specs:

            The blade on this knife measures in at 3.75 inches long with a handle that measures in at 4.75 inches long. This makes the overall length of the 0640 8.5 inches when it is opened. This knife is a good weight for having with you at all times. It weighs in at 4.4 ounces. This knife, like always, is made in the United States of America, so you can feel proud of owning this tool.

  • Good length and weight for having it as an EDC.
  • Made in the USA.

 

Conclusion:

            The Ernest Emerson designed 0640 is one of many new models released by Zero Tolerance in the tail end of 2018 and is a fresh new take on the classic EDC platform while making sure it stands out from the competition with the attributes and style. Each 0640 features an ultra-premium stainless steel blade that is deployed solely with a thumb disk complete with a titanium frame lock and hardened lockbar insert. This model features green carbon fiber composite overlay atop a stonewashed titanium frame, a clip point style blade in a satin finish with stonewash finished blade flats and the reversible pocket clip is designed for tip up carry only but is eligible for a left or right hand carry option.

            This new knife is in stock right now at BladeOps so buy yours now.