Zero Tolerance Sinkevich 0452CF Flipper Knife Carbon Fiber (4.1" Satin) ZT

Item #BHQ-27354
MSRP: $340.00
Our Price: $272.00
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  • Overall Length: 9.27"
  • Blade Length: 4.10"
  • Blade Thickness: 0.16"
  • Blade Material: CPM S35VN
  • Blade Style: Drop Point
  • Finish: Satin, Stonewash
  • Edge Type: Plain
  • Handle Length: 5.17"
  • Handle Thickness: 0.50"
  • Handle Material: Carbon Fiber
  • Color: Black
  • Frame/Liner: Titanium
  • Weight: 4.40 oz.
  • User: Right Hand
  • Pocket Clip: Tip-Up
  • Opener: Flipper
  • Lock Type: Frame Lock
  • Brand: Zero Tolerance
  • Model: 0452
  • Model Number: 0452CF, zt0452CF, zt452CF
  • Designer: Dmitry Sinkevich
  • Country of Origin: USA
  • Knife Type: Manual
  • Best Use: Everyday Carry, Tactical
  • Product Type: Knife

  • Satin-finished drop point blade made from CPM S35VN.
  • Flipper tab opener.
  • Carbon fiber scale over a titanium frame.
  • Titanium frame lock.
  • Tip-up, deep-carry pocket clip and a lanyard loop.


The Zero Tolerance 0452 flipper is a streamlined version of the award-winning 0454 folder designed by Dmitry Sinkevich. It has a CPM S35VN stainless steel blade with a Flipper, and the KVT ball-bearing pivot produces reliable, quick one-hand deployment. For a slim, elegant folder, get the ZT 0452.

Zero Tolerance has some of the tightest production standards on the market. Check out our selection of Zero Tolerance Folders for high-quality, pocket-friendly knives!

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Customer Reviews

Best knife that I own
John S. on Apr 1, 2020

Fantastic fit and finish. What is underrated about this knife is that with the shape of the handle, weight of the knife, and angle of the clip this knife sits against the far right of a right pocket and carries like a much smaller knife. When wearing regular pants or jeans, there isn’t much reason to carry anything smaller for me. Only complaint is that they should have figured out how to get the clip screws more flush - they do tend to hang up on a pocket edge. Detent was verrry stiff at first, but after a week of flipping is now full-on perfect. Fantastic large knife!

Stick, stab and slice
Chad S. on Jan 5, 2018

One of my favorite ZTs. Easy to carry in jeans and easy to carry in a suit. Easy to open once you figure the motion. As normal BHQ shipped fast with no hassle.

King ZT
Anthony B. on Apr 17, 2018

Besides a few sprint runs of this knife, the 0452CF is THE BEST KNIFE in the world. Just my opinion of course but I own about 35 ZT knives and the 0452 line is my favorite. It’s shave-sharp, great looking, perfect size (hey bigger is better right?) and buttery smooth with the KVT bearings. My favorite knife to flip when I’m bored.....that alone will make your day or turn that frown upside down :-D go ZT! P.S. Ronni B, they did make 2 versions with M390 steel, a blue/CF and a rose gold/G-10 version. I have a gold one but a sprint run with s90 or 110v would be awesome.....(ZT I hope you’re reading this) lol

Fav ZT Design
Tedd U. on Aug 24, 2018

Really love everything about this knife. Great action, CF has really great feeling, design it really aesthetically pleasing. Highly recommend.

Sweet action
jeremy w. on Mar 21, 2017

I've carried a Benchmade 940 and a Spyderco Endura for the past five years. I was reluctant to spend so much money on a knife but the 452cf is worth every penny. I could flick open and drop this thing shut all day.

Magnificent USA made knife
Kenneth D. on Feb 5, 2016

New to Zero Tolerance but not knives, This 0452cf is smooth as silk, Perfectly centered, Easy to carry in pocket and a whole lot of blade when you flip it open. This is my second ZT and just ordered another(0560) since these have both been perfect knives with a really nice fit and finish. I hope ZT continues to create more fantastic knives like this one. I now know why these knives are so popular. Then to top it off BLADEHQ has been extremely great to deal with. Way to go!

Great knife!
Nate S. on Jun 24, 2020

Absolutely no problems with it! Still has factory edge and I have had it for three years and use it every day!

perfect EDC
Adam W. on Aug 10, 2020

admittedly, it is a little big, but it's not cumbersome. it's thin enough that it can gain a little length without being inconvenient, and the handle is ergonomic as hell.

Great as Expected
Haw Y. on Sep 3, 2020

Went through a lot of reviews and comments before purchase. Now here it is and that's exactly what I was expecting. This is a great product for sure.

Philip y. on Jan 5, 2018

Big Knife but not too heavy. Cuts things good enough. Great materials and excellent fit and finish. Has one of the best flipping actions of any knife Ive Handled. Very comfortable to use. Looks good as well. Cant think of anything I don't like about this knife. Was probably my favorite ZT untill I got the 0920

Perfection EDC
Allen C. on Sep 5, 2021

I’ll admit. Early on I broke the tip off. Sent it back to Kai-ZT and they ground my knife to perfection. I love this new shorter blade! It’s perfect! Since then I’ve added new brass hardware screws and a new deep carry clip. I carry this knife everywhere

Great knife
Willard m. on Aug 24, 2018

This thing is a big stabby knife. Not so big and stabby that I mind carrying it everyday especially for national knife day. The best action I’ve ever had in a knife. It flys open. It’s actually kind of hard to get it to not flip. Perfect lock up and centering also.

Jake A. on Jan 6, 2018

This knife, while way bigger than necessary is so light and slender that it carries and cuts beautifully. Lightning fast action

My new EDC
Josh E. on Aug 24, 2018

This knife is great for EDC if you prefer larger blades. It's very comfortable in the hand and disappears in the pocket due to the slim closed profile. Fantastic design!

So elegant.
Arian T. on Jan 8, 2018

This knife is outstanding in terms of weight and quality. Clip could be a little better but overall it is a wonderful knife. If you're looking to buy this knife keep in mind that when it is closed, the blade tip sits really close to the edge of the bottom of the handle and if not careful you can snag things on it. If course, that doesn't really steal any glory from how great this knife is just a heads up.

Jeffrey C. on Jun 27, 2021

This is my first ZT purchase. And not my last! Smooth ball bearing pivot. Razor sharp blade. One hand open and close. The blade is centered In frame. There is no wobble or play in the blade. Quality construction. It looks good and feels good in hand. I’m extremely satisfied with my purchase! Jef C. .

william s. on Apr 7, 2020

This knife is so sleek sharp and balanced, it feels like an extension of your hand with a blade that gives you great reach and very tactical. They one thing I must say as I am still getting used to this is the flipper. If is something you MUST practice doing as if your finger touches the frame lock or blade or pressure in the wrong spot AND flipping you MUST do it like a light switch you cannot press and pull or do oa drag pull it must be an up in and down motion and position you back finger in a very strategic way or it will NOT open and it is frustrating thb, other then that this is a 9.0 / 10 only because of the specific flipper device they use Highly recommended.

great pocket sword!!!
Dyami M. on Aug 20, 2019

This knife is awesome feels so great in the hand. It really flips out fast too. Great ergonomics, and I like the downsize pocket clip. It is probably my largest folding knife. After having it in the pocket for a day, all my other edc's feel so tiny. It is a little big for an edc, but I like it so much, it is hard not to carry. Love ZT knives, they just ooze quality.

my favorite knife
Evan L. on Aug 12, 2018

This knife is what got me into knives. The design is simple but just awesome, beautiful and badass all at the same time. The action is still the best action I've ever felt on a knife. I've flipped this thing thousands of times everyday for months and its still an awesome and solid action. Absolutely recommend this knife and it looks like everyone else if having the same experience so zt is pretty consistent.

Best pocket knife
marcia r. on Jul 5, 2017

This is the best pocket knife I have ever owned that should say it all!

Alfonso F. on Jan 19, 2018

Ordered this in December as an early present for myself and I ordered it on a Tuesday and it was there by the end of the week. The knife itself definitely feels like $220 in hand and the fit and finish was impeccable, as is the weight which according to my scale is about 4.2 ounces. It's easy to disassemble and maintain over time and the S35VN holds it's edge. As a large man I enjoy large knives and this one definitely suits my fancy and is worth every penny

Another thrilled buyer
Hayden L. on Sep 2, 2017

I might as well not even write this review. There are 15 others who are as happy with this knife as I am. This is a mean blade. It flawlessly combines size and smoothness unlike any other. To have a 4.1 inch blade, it weighs nothing. The blade feels like it floats when opening or closing. The frame lock is beautiful and solid as a brick wall. The only downside is that if you aren't careful, the blade will cut your thumb when you unlock it because the action is so smooth. A masterpiece of a knife.

My Most-Carried Blade
William J. on Nov 1, 2018

I really try to carry other knives to work.. but I always come back to this one. It fits all my requirements: 4 inches, 4ish ounces, comfortable ergos, premium steel, low profile, slim width, uncoated blade, smooth action, good clip. Carries inconspicuously in a suit, jeans, or shorts. I need something that will perform well for daily tasks in an urban environment and also serve as last-ditch self defense. I combine this with a multi-tool and always feel prepared. Doesn’t hurt that this is also one of the coolest-looking knives I own. It’s not the tool I would take into the woods but I have other options for that. Urban or suburban EDC - this is your knife.

Rock Solid EDC
Ryan R. on Apr 16, 2021

I have been carrying my 0452 for nearly 3 years now. The action and lockup are still perfect, despite daily use and abuse. The sleek blade profile gives you a fine cutting edge, while maintaining a stout spine that has stood up to more than I would typically ask of a knife so light. It is perfect, I love it, and nothing is likely to take its place as my EDC.

Flipper that thumps
Matthew S. on Mar 5, 2018

Blade thumps open with ease every time. Beautifully light with the carbon fiber and razor sharp from the s35vn.

fantastic knife
Morgan S. on Aug 13, 2020

well-proportioned and comfortable. a joy to flick open and fits well in the pocket. Stabby and beautiful. The one thing worth noting is to make sure one flicks like a light switch, not like a push button--it can hurt otherwise.

zero tolerance 0452cf
Brent S. on Jan 17, 2016

This is one awsome knife. Super fast and smooth , light weight and sleek. Great blade steel cpm s35vn . This is my favorite ZT. Hands down the best !!! You won't be disappointed if you purchase this one.

Fits well in the pocket
Derek T. on Dec 8, 2019

It's a long blade, but the way it sits in the handle when folded gives it the feel of a knife an inch shorter. I have big hands and the handle sits very secure with my fingers wrapped around it. Nice large jimping on the spine for added grip that isn't irritating to the pad of the finger or thumb. I'd like the blade to deploy faster, but overall it is a very smooth operating flipper, feels like it's built like a tank, the two tone design due to the different scales looks nice as well.

Bunni L. on Mar 16, 2016

After purchasing the Boker plus Kwaiken tuxedo and I was so disappointed. I decided to get my first ZT and 0452cf is the first I wanna get before the Hinderer designs. I was worried about the QC until it came. Blade is very sharp and perfectly centered, no blade play, the handle finish is excellent especially the carbon scale. The only problem is the detent was too strong, but it's fine after few days of flipping and it breaks in. And the pocket clip is somehow too small for a 4.1' blade. It's a large blade but it weights like its a smaller blade. Recommended

New favorite!
Robert S. on May 25, 2015

This blade is pure awesomeness! I love a long blade, but this thing is so lite, so fast and has a lot of belly. Was a big fan of the O562 cf and 0801 cf, but this thing just fits! Perfect!

Top 3 All Time
Alex H. on Jun 17, 2017

This has got to be my favorite knife that I have gotten in months. It is so smooth and so ergonomic the pictures don't do it justice. The blade is huge but surprisingly it isn't as heavy as you would expect a knife this size to be. It is large but very practical with a deep carry pocket clip (love love love!!!!). I don't buy a lot of knives, I just buy quality knives and this knife exceeds every standard that I wanted to be met. I am going to carry this knife everyday along with my 940-2 and I know that I will always have what I need. Thank you ZT this is an outstanding collaboration!

My favorite edc
Jon H. on Jan 5, 2018

This knife is absolutely amazing. It gets more pocket time than any other knife I have. I have used this knife for everything from peeling apples to dressing small game and birds. The KVT bearing system is smooth as silk. The fit and finish is perfect. Blade centering is perfect. Lock up is rock solid. The S35 blade will take a razor edge and stay sharp for a long time. I like this knife so much that I also bought the smaller ZT 0450CF. Thank you ZT and Dmitry Sinkevich. You knocked one out of the park with this knife.

great knife
Darryl S. on Jan 14, 2018

I love this knife! I like a bigger knife and this one feels great! My wife also likes it and has recently been using it as her EDC. Knife came super sharp and keeps a good edge.

Great purchase!
Tony S. on Aug 9, 2019

This is my first s35vn blade and I am impressed with this so far. I was a little surprised at the size of this knife the 4.1" blade is a MONSTER! Think Crocodile Dundee: "...That's not a knife...THIS is a knife!" The weight is ridiculously light however it feels good and balanced in the hand once you play with it for a bit. Sharp out of the box but with a friends sharpener and a's sharpness approaches stupidity. Seriously, "razor" doesn't begin to describe what and experienced sharpener can accomplish with this steel. Bevel is a little delicate for my taste, as this is my EDC/Do All blade. I have a Leatherman I usually carry for box cutting and general purpose, as to save the edge on my new baby. I am concerned with the thinness of this blade using it for camping/survival purposes, but I have a ZT DPX HEST for that stuff. All and all, well worth every penny. FYI if you have small hands, go with the 0450. as I have decently large hands for my frame and this is approaching too big.

Isaac A. on May 28, 2015

Fantastic knife. Do note, as it came it was very difficult to open, I was afraid something was wrong, but by flipping it often and working the action it loosened up. The blade shape looks great and is very useful. The knife is very light. This is one of my most favorite folders.

Brian B. on Feb 22, 2019

Received this knife as a gift. This is a great knife , especially if you have xl hands. I am a fan of sinkevich designs, and the blade has a great edge. Could not be happier with a knife.

My favorite ZT by far
Cody W. on May 28, 2015

Best size ZT IMO, I had a 0562CF and sold it, this one is a much better design, fits the hand perfect, detent is extremely crisp, and lockup and centering are perfection and S35VN is one of my favorites. The only other ZT I see myself buying than this one is a variant of the 0454 or an 0450.

Large in Hand Yet Comfortable in Pocket
JASON H. on Aug 26, 2019

I usually stray from blades on pocket knives longer than 3.5 inches. I see no practical use for my own daily needs and they take up a lot of pocket space. That said, I love Sinkevich designs, and I hemmed and hawed over buying this knife for many months due to its 4 inch blade. I'm glad I finally pulled the trigger. It is a "pocket sword" no doubt, but the slender profile along with the minimal flipper tab, CF scale, and deep carry clip makes it carry so well in the pocket. As with other ZT's the action on this is superb, almost to a scary degree; watch your fingers when closing. Great ergos even for my small hands. Simple enough construction to easily disassemble and reassemble. My only complaint is the branding on the pocket clip, but that's with all ZT's, so you know what you're getting. Everything said, this is just another example of ZT hitting out of the park.

Bobby R. on Dec 25, 2017

There are many that say that this knife is "scary" or "too big." What do I say? I love this knife in every way shape and form. It fills my hand nice, and as a 6'1" bear shaped dude, it looks right at home in my hand. The action is smooth as butter, and the detent has the perfect resistance (for and experienced flipper, was a bit difficult for my non knife family members) and it deploys every time, even when i point it straight up! Its also very light, due to the titanium and carbon fiber. Overall, this is a fantastic knife and a worthy addition to any knife collection.

Get it Done Knife
Jozef J. on Dec 2, 2019

This is a large knife that's sole purpose is to get things done. Great in the kitchen due to the long blade length. Contouring around the entire knife is super comfortable in the hand. The size is just right for me to get a nice firm purchase on the handle. Blade steel is excellent and comes razor sharp. The action is what dreams are made of. The carbon fiber runs through the entire scale and looks really great as well. Slim design fits well in the pocket. Overall this is just a beautiful blade. Nothing bad with this thing at all. Even the lockbar is easy to disengage without worrying about it automatically closing.

super sweet
Todd B. on May 27, 2021

I like the ZT 0452 CF so much that i'm going to buy the same knife in the blue titanium model as soon as Blade HQ gets them in stock. Now, that's saying something about this knife!!!

Zero tolerance is the best
Floyd D. on Nov 9, 2016

I've had this knife for awhile now and it hasn't let me down. The action is still smooth and there is no play in the lockup . The clip was small so I took the clip off a 0801bw Rexford design and put it on this one, it's cool cause I have 2 of the elmax Rexfords. The size of this blade is another cool thing. It feels great in the hand, you won't be disappointed just change the clip.

Edward G. on Jul 11, 2015

I purchased my ZT 0452CF a few months ago and I could not be more satisfied. I really like this knife. It flips like a bolt of lightning. It disappears in your pocket and it's light to carry. ZT has a winner with this knife for sure. If your on the fence about buying one, let me tell you make the jump. You will not be disappointed.

Your Blade Quest Ends Here
Jason A. on Jan 5, 2018

The dozens of YouTube videos you’ve repeatedly watched, dissected, and drooled over are accurate. Smooth action, nice reach, and lightweight. Good detent, mind the lock bar. -Never not have a knife.

Absolute Homerun
Jon P. on Jun 3, 2015

ZT has knocked it outa the park with this one. For a 4" blade, it's extremely light and slim. Takes up very little pocket real estate. Once the action breaks in, it's a fantastic flipper. Highly highly recommended.

Christian T. on Jun 12, 2018

Best knife I’ve owned (I’ve owned a lot of knives from zt, Benchmade, boker, and spyderco) nice detent, smooth flip out, and solid on lockout.

The new go-to
Trey L. on Mar 24, 2016

I purchased this knife recently and it is my first ZT. I was a a bit hesitant to purchase this knife for EDC but after one day of carrying it and forgetting it was there several times the worry faded into a smile. Yes it is a big blade, but it fits in the hand perfectly and carries like a knife half the size. Couldn't be happier with my purchase. I can't find something I don't like about the overall design and shape, and it is razor sharp. I was afraid the carbon fiber would seem cheap or fragile but just the opposite is true for this ZT. The carbon fiber is VERY nice, robust, and you can tell no corners were cut in the making of this knife. If you are looking to purchase your first ZT, BUY WITH CONFIDENCE! If you are a ZT already know how awesome they are, and this is an seriously awesome model to add to your collection!

Michael F. on Dec 17, 2016

This knife is the $hit. From the moment you open this knife you will fall in love. This has to be in my Top 5 EDC blades of all time. The only knife I would chose over it right now is my Benchmade 940-1501. Both are MUST haves in a collection. This knife is a GREAT value at $220 and even if the cost was $300+ it would be a good buy. ZT / DS have created something special and we are Privileged to own this Knife. Wow...

Best knife i have ever owned!
Ronni B. on Feb 19, 2018

Action is the best i have ever felt, butter smooth like its gliding on air. No hot spots, knife fits like a glove in the hand. balance point is dead middle. blade shape and length is amazing, this knife is deffinitly a home run. I hope they come out with the same knife but in different materials like S110v, or S90v and different color barrel spacers. If your thinking about buying this knife BUY IT ALREADY!

Never selling
Jordan T. on Jun 25, 2018

This is great large edc/ tac. Knife. Mind had lock stick at first 2 days later gone and love the knife.

The Large ZT Sinkevich fippers are GOLD
Erik W. on Jul 20, 2019

I have both this version and the blacked-out stonewashed (0452WBW) version of this also with the 4.1 inch blade. Out of the box within a couple of flips the action is smooth as glass! ZT knifes all come "sharp" but given ZT designs the blades are a bit on the thick side. On the other hand the ZT Sinkevich flippers are pushing scary sharp out of the box given the thinner blade. Construction and material are as expected and the finishing is well done. These are excellent knifes and well worth the money!

Don M. on Feb 2, 2018

This is now my favorite knife. The action is to die for. Fit and finish are excellent. Wonderful knife. Looks great.

Griffin M. on Aug 16, 2020

This knife is very well made and fits great in my hand.

adam j. on Feb 1, 2016

I have very large hands, fits my hand perfect. Carbon fiber handles look great and makes the knife incredibly light for its size. Superb craftsmanship. Awesome materials and blade steel. I have 6 other ZT knives but this one for sure is turning to be one of my favorites amazing knife. It's crazy how big of a blade this knife has but carries so well in the pocket and is so light and balanced. Thanks Blade HQ!

Awesome beginer Flipper
Alex g. on Mar 14, 2019

This was one of my first flippers. Once I started getting better flippers I sold my ZT but it was a great knife at the time. The one lart i dont like is the flipper tab is to vertical and is hard to deploy sometimes

Great Knife With One Flaw
Joseph L. on Aug 24, 2018

The ZT 0452cf is a wicked awesome knife. Love the design, looks stellar no mater where you take it and the detent is truely addicting. Only issue I have is the centering; the blade favors the carbon side even when I tighten the pivot up to the point where there’s major resistance on the blade.

A BIG Knife!
Jennifer J. on May 2, 2020

This is a big knife. The specs show it, but it's different in hand. It's also pretty weighty. One side carbon fiber and the other titanium, where the liner lock is located. Overall fit and finish are nice and overbuilt. Belt clip is fine, but on the small side for such a big, heavy knife. The blade is plenty sharp out of the box and very thick. No worries on breaking this blade. The overall shape and geometry of the blade, does feel like a big kitchen chef knife or old school Buck folder. Not very modern or tactical-cool. The blade shape may turn off some for this reason. The other thing worth mentioning is even though it uses a bearing pivot joint, mine was and still is after 2 weeks, pretty stiff. I continue to oil and flip it often, but it hasn't loosened up much. So it can be on the stiff side. Otherwise, a big, sturdy, well made knife. Perhaps a little large for EDC, but depending on the use, very handy and extremely well-made.

Wow. This blade is sweet.
TJ S. on Oct 16, 2017

This knife is a home run. But not a grand slam. They wiffed badly on the clip. I know it’s the standard ZT/Kershaw clip but dude...that little ugly clip screwed onto that beautiful long titanium scale...just doesn’t sit well with me. It just feels and looks a little diminutive and weak contrasting with the rest of the knife. Checkout Ebay, someone is doing anodized hardware and clips for this knife. I bought and installed these mods and it takes this knife into the stratosphere. Super light, deploys super fast, long blade, large in hand, small in pocket, in/out of pocket fast, jeez idk everything rocks on this knife. With the mods I mentioned above, I would have paid +$300 for it (*nudge* ZT).

Smoothest ZT I own
Hunter A. on Feb 22, 2019

Perfect action. Perfect blade shape. Good blade steel.

awesome knife
Chad B. on Sep 5, 2019

great size for someone with a large hand

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