Zero Tolerance 0452CF; Pocket Knife with 4.1” Dual-Finished S35VN Steel Blade, Carbon Fiber Front and Titanium Back Handle Scales, KVT Ball-Bearing Opening, Frame Lock, Deep-Carry Pocketclip; 4.6 OZ.,Large

I recently got my hands on this sleek folding knife, and it's been a game-changer. The 4.1-inch S35VN steel blade is razor-sharp and holds its edge impressively. The carbon fiber front and titanium back handle provide a sturdy yet lightweight feel, making it a joy to carry daily.While attempting to slice through some paracord, I half-expected a dramatic "Hi-ya!" to escape my lips—it's that satisfying to use. However, at 4.6 ounces, it adds a noticeable heft to my pocket, reminding me it's there.Overall, this knife is a reliable companion for both everyday tasks and outdoor adventures.

This is my first knife purchase that exceeded $200. I own a half-dozen benchmades, several spyderco's, several kershaws, but only one ZT before purchase which was the 0566 (a great knife as well).Pros:- The quality is superb. I mean really superb. The fit and finish is fantastic.- The deployment (after about 200+ flips) is incredible. The blade flies open. It rockets past the 0566 which is assisted. I'm still amazed out how fast this knife deploys for a manual flipper.- The looks are amazing. I absolutely love the design.- Even though it's a very large knife, it fits my hands very well and very comfortably.- I can carry this in dress slacks, blue jeans, cargo shorts, inside my waistband, etc. Supper easy to carry.- Yes it can be an EDC knife even though it's over 5" long! It's not uncomfortable in your pocket.- The lockup is absolutely, without a doubt, the most solid lockup i have ever experienced. The ZT 0566 was good, but not this good! and benchmades and spyderco's are great, but not this great. It's a huge knife, easy to get the leverage to flex and rock the blade to feel some slack but there is none.- The frame is very sturdy, even through there are only two standoffs at the back of the knife. There is very little flex.- The carbon fiber does provide some nice (yet subtle) traction.- The weight!! This is a light-weight knife for it's size.Cons:- The blade was not what i would call sharp. The grind was about 20* on one side and probably 30* on the other side. I had to reprofile the whole blade in order to sharpened in 20* on each side with my sharpmaker.- The blade is long and you can cut yourself on the tip of the knife with it closed. I have not done this, but I have felt the tip several times when reaching for the knife closed. Not a deal breaker for me, but it is possible to cut yourself.- The top-back corner of the carbon fiber was sharp and dug into my palm when flipping. It was machined perfectly but was just uncomfortable so i took some fine sandpaper and after a few passes it rounded the corner just enough.- The pocket clip is just dumb. I put a pocket clip from my kershaw Camber on the knife for the time being. This allows for a slightly deeper ride in the pocket so that the knife just disappears all together.- There is some rough scratching/ grinding against the blade and lockbar (once the detent ball drops off and right before the lockbar clicks into place). After a few hundred (okay, probably a few thousand at this point) flips, the grinding is about gone. It doesn't seem to affect performance, and it's only for about an 1/8" of travel or so. I think this is just due to the lockbar insert not being polished and it drags the blade for just a bit.- It's so long in my pocket that if i have keys in the same pocket they hit each other. I've never had this problem before so it makes me reconsider how i carry my phone/keys/etc.- Price, yep - it's expensive.Wishlist:- Make this same exact knife the size of the ZT 0450. I'm not into all metal/titanium knifes. So give me the ZT 0450 with a CF scale or a miniature version of this knife and i'll be all over it.Overall:I really like this knife. Once i sharpened the blade with an edge pro, the put a fine 40* inclusive edge on it with a sharpmaker ultra fine stones, followed by stropping, the blade performs at a much higher (and expected) level. It's supper fun to flips and look at. I plan to use it as an EDC and it's a great food prep and steak knife replacement.If i had to do it over again i probably would have bought the ZT 0562CF which is a little bit shorter and the grind looks to be better for slicing. The 0452CF is just long enough that i can't carry keys and the knife in the same pocket and that bothers me a little. However, i'm still going to carry it!Is it worth the money? I have no idea, probably not, but the quality is much higher than all of the $130-$150 knives i own so i guess you do get what you pay for!I've included a picture of this against a Benchmade Sequel 707 which is truly a perfect EDC knife (3" blade). Big difference in size!

I have experience with mostly average knifes, low to mid grade Sog's and Kershaw's. Then I graduated to a higher quality Spyderco that was a revelation. This is my first ZT and it has been an equal revelation. This knife is equal parts tough, robust build, tight tolerances, high grade materials, and superior design. The scales are well contoured and machined, with the carbon scale lightening the knife and the titanium side giving it good weight. I say weight, but it is only as heavy as it needs to be to feel robust but still is ultimately carryable. Sizewise this is only a fraction of an inch longer than my paramilitary 2 closed and the handle hides the 4 inch blade better than that knife. The blade is perfectly centered, the Lock up is 100% first time every time, and while having a tight detent, it does fire out with the flipper. I love that this isn't a speedsafe model but just uses the buttery smoothness of the bearing system. The blade is beautifully sculpted, two tone, flat ground, and came as sharp as any knife I've ever bought. The pocket clip is tip up only and fold over deep carry perfection. I've been carrying this for a few days now and the smooth flipper action is addicting. It carries much smaller than its specs and is a great, large edc blade if you're confident with a large blade. Buy with confidence.10/2016 Update: I still love the size, the weight, the materials, the asthetics, but there's one gripe. The tip of the blade is too close to the end of the handle when closed. If you press the pad of your finger down on the butt end of the knife when closed, it will scratch your finger. Even worse, when it was clipped into my pocket, one time I tried to get something out of the pocket. I tried to push past it and the webbing between my thumb and forefinger caught the gap between the scales and because the blade tip is so close to the end, it neatly cut my handed and nearly ruined a pair of pants with blood. This is a design flaw unique to the 0452 because I have the 0450 zdp and the tip is back 1mm.