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Zero Tolerance Model 0550 Hinderer New Lockup Folding 3.5" S35VN Stonewash Plain Blade, G10 Handles

Customer Reviews 5.000 Read 22 reviewsWrite a Review
Part Number: ZT0550
Manufacturer: Zero Tolerance Knives
Retail Price: $250.00
Our Price: $200.00
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ZT0550: Model 0550, New Style Lockup
Zero Tolerance Knives

The Zero Tolerance Hinderer 0550 features a bullet-tough blade of Crucible's S35VN stainless steel with stonewashed finish. The steel is designed to offer increased toughness over S30V, yet be easier to machine and polish. It offers high wear resistance and resists edge chipping. It's chemistry includes niobium, vanadium and chromium carbides and offers an exceptionally uniform distribution of those carbides, too. In other words, this high-performance knife can take whatever you can dish out. Designed by Rick Hinderer.
  • Blade: S35VN, stonewashed finish 3.5 in. (8.8 cm), 0.156 in. thick
  • Scales: Textured G-10 4.5 in. (11.4 cm)
  • Overall: 8.125 in. (20.6 cm)
  • Lock 6AL4V Titanium frame lock
  • Weight 5.8 oz.
  • Deep carry pocket clip
  • Made in USA

UPC Code: 087171032047

Frame Lock
Frame Lock
Developed by Chris Reeve, it functions like a liner lock but the lock is comprised of one of the handle scales. It's an extremely strong and easy to manipulate lock.
Made in USA
Made in USA
This product is USA born and raised.
Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
A tougher steel than S30V, it retains the excellent corrosive properties and ability to take an edge, but improves on the ability to hold that edge.
G10 Handles
G10 Handles
Formed in a sheet under high pressure by combining fiberglass and an epoxy resin binder. These handles are lightweight and shaped to ensure a solid grip.
5.000 (22 reviews)
5.0 out of 5 stars
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5 out of 5
Apr 10, 2014
Pros: Blade Sharpness, Pocket Clip, Lock Ease of Use, Handle Material, Blade Material, Handle Feel, Ease of Opening, Overall Quality
Cons: None
Amazing right out of the box
I just got mine today so I can't yet speak to long term use, but after reading a number of other reviews I wanted to address a few key complaints I've heard from others. First off, the G10 side is exactly as grabby as every other G10 handle I've felt (if anything, a little less). I think it's perfect. Second, mine opens very smoothly and with little to no effort. I noticed there's a small ball bearing (or something like that) mounted on the lock bar which rides against the blade. I'm wondering if some simply require more break in than others? At any rate, mine opens great right out of the box. The knife is amazingly well made. After close examination I can't find a single flaw. It fits in my pocket perfectly and came razor sharp. I'm VERY happy with my purchase. Some folks may find this knife a little too heavy, but I honestly don't think those people are going to be looking at a knife like this in the first place. To me it's just right.
5 out of 5
Jan 30, 2014
Pros: None
Cons: Weight
An indestructible tank!
This is definitely the EDC to own if you're into knives! Solid and robust handle feeling, no loose in the blade, razor sharp and long lasting cut. I used it to go through branches in the yard and it still very sharp. A bit heavy, it also tends to destroy your everyday work pant pocket!
5 out of 5
Chris P.
Worcester, MA
Nov 26, 2013
Pros: Handle Material, Handle Feel, Overall Quality, Pocket Clip, Ease of Opening, Weight, Lock Ease of Use, Blade Material
Cons: Weight, None
Ok, so I've now had this blade for quite a while now, and I have to say, my remarks in the first of these reviews (concerning the 0551) still stand. Just as a rider though, I thought I'd add this bit. I recently sharpened the 0551 on a carbide sharpener to a 40degree inclusive angle. The sharpener has served me well with other knives, so I figured I'd give it a shot on this one. Even though the edge is thick, the carbide sharpener smoothed out the entire length (but did require 2 changes of blades!), which made it very sharp. However, users of this knife design should know that the thickness does not like to be sharpened to a smooth edge. A smooth edge on this blade (mine is Elmax, the S30V may differ, but I suspect its the thickness, not the steel) does not grab a material to cut it. It seems to just want to slide past the material rather than go through it. I took my prized 0551 and sharpened it on a cheap dual-sided benchstone. It had coarse and "fine" (really more like medium) grits to it, and lo and behold, the 0551 was a cutter again. As a knifemaker, I fought against the growing trend of carbide 'V' sharpeners. However, the latest crop of them has given me pause, and I now own a few. They are handy for certain tasks and certain blades, but NOT all of them, and certainly NOT the 0551/0550. Once I re sharpened the "beast" she was again a joy to behold, and a fearsome destroyer of cardboard boxes for the recycling guy to pick up. If you get this blade, get yourself a decent benchstone (an actual stone one) and learn how to use it from the guy who shaves his beard with an axe. He wrote a fantastic book, so find it, read it and learn about the dual-bevel edge. It will shift your paradigm, if you know what I mean. Two years going and I still love this knife above all my others, and it frequently rides in my pocket when I want a little "something extra" going out. Now, I won't have performance anxiety when cutting stuff. The shiny, smooth edge looked good, but on this knife, it killed the performance.
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