Zero Tolerance Hinderer 0566CF Assisted Opening Knife (3.25" Stonewash) ZT

I've wanted a ZT for a while now, and when I saw the discounted price on this soon to be discontinued knife I jumped on it. I'm so glad I did. First of all, this is one of the sharpest out of the box knives I've owned. I love CPM-S35VN that the blade comes in. The carbon fiber on one side and stainless frame lock on the other is attractive and feels good in my hand. I have no problems flipping it open with the flipper (nice crisp action...fun to fidget with). The frame lock is tight, but I can close it with one hand. I'm very impressed with my new Hinderer 0566CF ZT. I'll buy more ZT in the future. :)

Razor sharp, beautiful craftsmanship, quality materials, it’s a little tight but that is expected. Nice price for a carbon fiber with S35VN blade.

I've had this knife for about a week, but it is a fantastic knife. Came razor sharp out of box, and the blade was perfectly centered. Although the action was fairly stiff, it has broken in quite nicely. My only gripe about the knife is the fact that the frame lock is a little sharp, but nothing that I can't handle. Overall its been a great knife for the time I have had it, and has been able to complete any task that is needed of it in my landscaping job. I definitely recommend buying one while it is still in stock.

Built like a tank, love it!

Very well built knife . Like the weight feels good in my hand. Things were tight at first but after a few days of carrying it functions got easier . Blade HQ fast delivery and good price.

I got this beautiful knife a few years ago for Christmas from my brother in law and have used it every day since. It has absolutely been through the ringer to say the least, and has held up and preformed beautifully. I would highly recommend this knife to anyone looking for a good tool as it stays sharp and is not difficult to keep sharp/sharpen. if it got lost or something happened I would not hesitate to purchase another. Thanks BladeHQ!!

I purchased this over a year ago, and it is my favorite EDC knife, with M390 steel. It is the perfect balance of solid, and easy carry. After lots of use the Carbon Fiber still looks great, and blade holds a great edge, and is still perfectly centered. Deep carry clip is nice to have straight from the mfg. If I lost mine I would go buy another straight away, and would have no issue recommending this to a friend. Near perfect knife for my needs, from opening a box, to a week of camping. This goes with me.

First ZT, so I'm not sure if all of them are like this, but the frame lock is on the stiff side. Otherwise it is a great knife, super happy with it.

I've been looking at ZT for quite sometime and I love the Hinderer design. You can feel the quality of the knife and fit and finish are astounding. The assisted open feature is a little stiff but overall I really enjoy the knife. My only reason for 4 stars has to do with the pocket clip. In the standard position the clip adds additional tension to the frame lock making it difficult to actuate. I thought I'd be clever and try to loosen the clip tension slightly and the clip snapped in half. No worries though. ZT support shipped a replacement clip at no cost to me. I'm glad they stand behind their product.

I normally don't award 5 stars but this met all my criteria. I'm not sure why this knife has been discontinued because it's a tremendous value for a ZT, let alone a Hinderer design. Some guys complained that it won't flip with the lock studs like my Hinderers do and I agree. My questions is, with the AO, why would you? With all its features I don't know how it flew under my radar until now, so I jumped on it since it won't be around much longer. I'm very happy I did. Update It just figures it would go on sale a couple weeks after I bought mine.

Knife came razor sharp out of the box with perfect blade centering. The action was a little stiff out of the box but breaks in a little after so use. I backed off the pivot just a hair and that seemed to help. Still, I find the thumb stud pretty hard to use. The knife is built like a tank and the ergos are perfect for my hands with great jumping in just the right spot. Lock up is excellent. It is clear this in built to be a hard use knife. I really like it, but am going to knock it a star for the stiff action.

Great buy at closeout price. Knife came a with hair shaving edge and blade centered perfectly. Vault-like lockup and no blade play whatsoever. Beautiful carbon fiber slab and well executed jimping on blade and handle. Great ergonomics for my medium sized hand. Really like the deep carry clip, though tight going into pocket. Thin enough to carry well, but weight is noticeable in the pocket. Opening and closing were stiff out of the box. Overall, a beautiful, well designed knife.

i have been carrying it for alittle over a week and i am loving it. ZT built and sale price= must have. For my EDC it was a win.

This is a good buy on sale. My chief complaints are the clip and the stiff action. Installed on the back for tip down carry, the clip presses on the lock, making an already stiff knife nearly impossible to open and very difficult to close. I've moved it to the CF side until a Pops Custom clip arrives. Even with the clip moved , it is impossible (for me anyway) to open the knife with the tumbstud one-handed. As my first ZT, I'd have to say it is rather disappointing.I have several US made Kershaws I like more at half the price.

I love this knife. It locks quickly and tight. The blade is excellent and the flipper opens easily. The thumb studs are not usable for me. A very poor design for an otherwise nice knife.

The ZT 0566CF knife came razor sharp out of the box with perfect blade centering. Perfect blade length, great steel, I Like the weight & it feels good in my hand and carries nicely in my pocket. Beautiful carbon fiber, and good overall appearance The assisted opening spring is much too stiff & the flipper is difficult to grip - it needs some checkering or sharp gimping on the flipper. Due to poor ergonomics and the too stiff opening spring, the thumb studs are useless. The frame lock is extremely difficult to disengage one-handed & I had to use two hands to close the very strong frame-lock. A very poor design for an otherwise nice knife; I returned it

I wish I had done more research before purchasing the ZT0566CF. The production quality is good but the design is poor. The flipper with assisted opening is too stiff. Due to poor ergonomics, the thumb studs are useless & the frame lock is very difficult to disengage one-handed. Furthermore, the knife is about 2oz. too heavy for its size. In my opinion, a Skyline is a better Kershaw design for edc & a Spyderco Native is a better knife for hard use. This ZT won't see any use with me & I think I know why the 0566 was discontinued.

Received this knife on time from Blade HQ and was impressed with the looks of the knife at first. I collect folding knives and own seven other ZT’s and have been happy with their quality overall. But, this knife has been disappointing. First, the blade came off centered. Even after hours of loosening the pivot and frame screws, using a business card to wedge over the blade . . . I have not been successful getting this blade perfectly centered. Also, the lock bar is tight making it hard to release and close the blade. I may give up and send it back to ZT and see if they can make it right, but this knife is not the quality of my seven previously purchased ZT’s.