Zero Tolerance 0770CF Knife Review for 2021

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By Doc Montana •  8 min read

Most who consider themselves prepared would rank the humble pocket knife as a survival essential of the highest Survival Knifedegree.  In fact, the sharp blade often exceeds even fire and water in immediate importance.  So having a sharp edge ready to go no matter the situation means carrying a quality blade with you 24/7 or at least whatever part of 24 fits your lifestyle.

Therefore the place to cut costs is certainly not with your EDC blade.  Everyday Carry is code for that which we have on us as much as possible. Not a tent or sheath knife, or even water bottle, EDC means right here, right now, and everything you have with you when you take off running.

Zero Tolerance 0770CF Folding Knife; 3.25” High-Performance Crucible...
  • 3.25” Crucible S35VN steel features excellent wear resistance, toughness and protection against...
  • Carbon-fiber handle construction with a secure inset liner lock, reversible deep-carry pocketclip...

Last update on 2024-03-27 at 23:23 / Affiliate links / Images from Amazon Product Advertising API

Zero Tolerance 0770CF Review

A Lightweight Heavyweight

Zero Tolerance has generated a reputation on above average knives that not only vastly exceed traditional quality Best EDC Knifeand performance, but actually set the bar high for everyone else. In other words, unlike many other brands, Zero Tolerance, or ZT, starts at the high end of knives and goes up from there.  The problem, however, was pretty much the entire line of Zero Tolerance knives were huge and heavy, not to mention expensive. Now while ZT did address the huge and heavy with their 0770CF knife, they kept it expensive if you consider ~$200 for a factory folder.

Also Read: 6 Tools To Survive Anything

ZT began its journey back 2006 when, as they say, “We saw a place in the market for a Made-in-the-USA line of Best EDC Survival Knifehard-use knives that would meet the needs of professionals in the military and law enforcement, as well as other first responders, such as firefighters and emergency medical personnel.”  Considering themselves “Proudly Overbuilt,” I just had to see for myself with their lightest, smallest, thinnest offering.

Of the Zero Tolerance knife lineup, most of them overlapped what was already in my EDC stable. For a new ride to tickle my fancy, it must occupy a empty space in my knife quiver. The ZT I chose was a carbon fiber scaled assisted opening flipper with great steel and a most importantly a blade profile that I can really use for the ED part of EDC.

The USA, well Tualatin, Oregon to be specific is where ZT knives are born. American manufacturing by American workers is a significant selling point of ZT. For me, I have to wonder what is it with Oregon? Not only are there a couple dozen popular custom knife makers inside the Oregon borders, but also a company named Benchmade. Heard of them?

Although ZT traces its roots to its 2006 KAI Cutlery spinoff, many consider it a premium brand of Kershaw knives. But it’s more like the smarter better looking sister of Kershaw.  Kai USA Ltd. is the parent company and in turn the Kai Group is the grandparent. Regardless of the Japanese connection, Zero Tolerance claims all its knives are built in Tualatin, Oregon which happens to be the headquarters of Kershaw. So you can see how some confusion could arise.

Crash and Burn

The Zero Tolerance 0770CF is a super tough lightweight assisted flipper with ELMAX steel and carbon fiber scales. Zero Tolerance vs BenchmadeThe 0770CF is essentially the new and improved version of the short lived and ultimately doomed Zero Tolerance 0777 which was an amazing folder of mythical features. So much so that when the “Triple Seven”  went from computer screen to factory floor, there were just too many design obstacles and engineering overlaps to overcome. Hype turned to horror and the knife disappeared almost as fast as the Remington R51.  Or in Zero Tolerance parlance the 0777 was a “very limited-run.” And to further hide the past, ZT released the 0770CF with the added feature of being, “much more generally available.” Either way, the 0777 was a $475 unicorn, and the 0770CF is a glass of icewater in the face at less than half the price.

Phoenix This

The shape of the 3.25 inch blade on the 0770CF combines several useful design elements including a slightly full Survival Knifebelly, a gentle interpretation of a Wharncliffe tip, aggressive jimping for thumb purchase on the back spine, and an effective swedge riding the spine before expanding to full thickness just prior to tapering to the tip.

Related: Survival Knife vs. Hatchet

A Wharncliffe blade, as described in Wikipedia, is “similar in profile to a sheep’s foot but the curve of the back edge starts closer to the handle and is more gradual. Its blade is much thicker than a knife of comparable size.  Wharncliffes were used by sailors, as the shape of the tip prevented accidental penetration of the work or the user’s hand with the sudden motion of a ship.” I’ve also read that the Wharncliffe shape makes for better penetration into an opponent’s muscle behaving more like a can opener than a slicer. But the 0770CF, not quite so much. Instead the 0770CF blade profile scores high in daily slicing, but benefits from a precision tip while maintaining Wharncliffe strength.  The overall length of a deployed 0770CF is 7.5 inches, and when in the pocket, the handle alone takes up 4.3 inches of space. The thickness of the knife is a hair over 3/8ths of an inch, and the blade at its thickest is 1/8th inch thick.

Flipping Out

As with most flippers, the deployment lever of the Zero Tolerance 0770CF doubles as a finger guard which in my Zero Tolerance EDC Knifeopinion is over half the reason to carry a flipper. The SpeedSafe® assisted opening spring assist mechanism rockets out the blade with minimal effort, and the inset-liner lock snaps into place with a satisfying click. A added bonus with the 0770CF is that the assisted opening mechanism is completely isolated from the locking bar. Some assisted blade designs package the deployment and locking as one unit meaning that if the spring fails, so might the lockup. In the case of the 0770CF, complete failure of the spring assist would not render this useless as a locking knife. I do notice, however, that the longer the time between blade deployments, the more force needed on the flipper lever. Sometimes I am quite thankful for the heavy duty jimping on the lever as it digs into my index finger when trying to wake up the knife after a long sleep.

Zero Tolerance 0770CF Folding Knife; 3.25” High-Performance Crucible...
  • 3.25” Crucible S35VN steel features excellent wear resistance, toughness and protection against...
  • Carbon-fiber handle construction with a secure inset liner lock, reversible deep-carry pocketclip...

Last update on 2024-03-27 at 23:23 / Affiliate links / Images from Amazon Product Advertising API

Related: Neck Knives For The Masses

The oversized and overbuilt pivot is the only obvious ornamentation on the naked carbon fiber scales. Three small  Good EDC Knifeblack screw heads grace each side of the scales on the in a row along the palm-side of the handle connecting the scales to a steel spacer that occupies the rear portion of the grip spine. The foremost portion of the grip spine is fully open completely free from obstructions making the removal of debris painless whether dried blood, bone fragments, or more likely pocket lint.

The deep carry pocket clip is reversible, but only in the tip-up (when folded) configuration.  Out of the box I found the pocket clip to be a little weak.  After removing it and rebending the clip to my specifications, I now find the clip worthy of the rest of the knife.  The blade is billboarded with the ZT logo on one side, and four lines of info on the other including a serial number.

Related: Fallkniven Jarl Knife Review

With a weight of three ounces soaking wet, the 0770CF fights much harder than it’s weight class. By using ELMAX Zero Tolerance Knife Thicknesssteel, Zero Tolerance provides an in-house super steel choice that claims the best of all options. In my experience, the edge retention is on par with Benchmades house iron 154CM.  The ELMAX seems not quite as durable as S30V steel but resharpens more easily.  But we are splitting hairs here.

The balance point of the 0770CF is just where it should be, right at the index finger point behind the guard.  Because the balance is where you hold the knife for precision work keeps the blade on task with little fight from gravity.  Heavier blades can drop or twist when lightening or adjusting your grip.

A Knife in the Hand

The Zero Tolerance 0770CF is decidedly angular with pool table-flat scales that turn corners just barely slower than Zero_Tolerance_0770CF_Benchmade_Volie_EDC_Knife90 degrees with one flat bevel splitting the difference between across and down. But that’s a good thing.  The platform that houses the blade leans more towards the carry side of the EDC equation.  The 0770CF disappears into your pocket barely printing even in dress pants.  Considering that nearly 100% of the knife’s service life will be awaiting orders while tucked discreetly along a pocket seam, it is easy to overlook the lack of ergonomic elements when drawing, deploying and dissecting with the blade.

Better Than Two in the Bush

Any EDC blade worth its salt is a knife you can count on for daily hard use, as well as being worthy as a survival tool. EDC is as entertainingly controversial as is the contents of one’s bug out bag.  Everyone has an opinion based on some fantasy of what will be needed when you really need something.  As card-carrying EDC aficionado, I have carried folding knives from the lightweight Fallkniven PC, to the heavyweight Benchmade Adamas 275. So for me, the Zero Tolerance 0770CF is truly a lightweight heavyweight.

Zero Tolerance 0770CF Folding Knife; 3.25” High-Performance Crucible...
  • 3.25” Crucible S35VN steel features excellent wear resistance, toughness and protection against...
  • Carbon-fiber handle construction with a secure inset liner lock, reversible deep-carry pocketclip...

Last update on 2024-03-27 at 23:23 / Affiliate links / Images from Amazon Product Advertising API

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Doc Montana

Doc honed his survival skills through professional courses, training, and plenty of real-world situations, both intentional and not. Doc lives to mountaineer, rock climb, trail run, hunt, race mountain bikes, ski, hunt, and fish. Doc Montana holds PhD’s in both Science Education and Computer Science and currently teaches at a University in the northern United States. Read his full interview here.