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m390

Zero Tolerance 0620CF Review

by Dan Jackson 13 Comments

Last Updated: August 3, 2019
I have given Zero Tolerance over the past year. So I actually had to pause and think when my pre-order for the 0620CF popped into my inbox. I try to feature a variety of knives from different manufacturers. Would I purchase and review this knife? I slept on it for a few days, and decided that this collaboration with Ernest Emerson was special enough to justify another Zero Tolerance review.

Zero Tolerance 0620
Buy the Zero Tolerance 0620CF at BladeHQ

Buy on Amazon

I’m glad I made that decision, because when this knife arrived I could immediately tell it was significantly different from the other ZT offerings I have sampled.

General Dimension and Blade Details

The 0620 has an overall length of 8.5″, a 3.6″ blade, and weighs 6.2 ounces. While the Kershaw / Emerson collabs are scaled down offerings, the 0620 more like a full size Emerson. This thing is large and in charge. It suits the nature of the collaboration well, but relegates the knife to a more dedicated defensive role or collector’s item. At least for me. I don’t doubt some will every day carry (EDC) this knife, and there is nothing wrong with that if you can manage the size and weight.

The blade has always been one of my favorite aspects of an Emerson. The crisp grinds and beautiful finishes of the blade contrast oddly with the often crudely finished handles. I am pleased to say that ZT did Ernest right by the 0620. This is an immaculate American tanto complete with Emerson’s 2 tone finish: satin bevels and stonewashed flats. The multi-faceted grind has been beautifully done and the blade catches the light almost like the real deal.

Where this collaboration departs from a real Emerson is that ZT decided to V-grind the edge. Say what you will about chisel edges… easier to maintain “in the field”, cut better, blah blah blah – I’ll take this standard V-grind edge any day.

I have never been a huge tanto fan, but this version features a subtle curve between the tip and secondary point. It speaks to me the same way the Lum Tanto did – a tanto blade for guys who don’t prefer tantos.

Zero Tolerance 0620 Blade

The natural geometry of a tanto blade is excellent for stabbing, and this one with its clipped point is no different. While this is a beefy slab of steel, the flat grind is lean enough to make this a reasonable slicer, and the edge has been expertly applied.

If you aren’t a modified tanto guy, ZT is releasing the 0630, featuring a modified clip point blade, much like the CQC-8 Horseman that may be more to your liking. Personally, I have been enjoying the tanto as I currently don’t have a lot of tantos in my collection.

Much like the 0562, ZT is offering the 0620 in two flavors: M390 blade with a carbon fiber handle scale (shown here), and an Elmax blade with a G10 handle scale. M390 is a super steel and I have always treated it with a little apprehension because super steels have a reputation for being difficult to sharpen. I put my big girl panties on for this review and have been actually, like, using both my 0620 and my Benchmade Valet which is also in M390. Edge retention is exceptional and so far the steel has responded well to light stropping. This is all I have had to do over the past 8 weeks or so of use. This is excellent stuff and I look forward to continuing to evaluate M390 in earnest.

Handle, Ergonomics, and Pocket Clip

The 0620 has as thick titanium locking side and the show side is carbon fiber (or G10) over a full stainless steel liner. Construction is robust, to say the least. This is an extremely solid knife and it’s difficult to describe the feeling you get in handling the 0620. Each edge is rounded, the liners and carbon fiber are seamless. Beefy hardware sits securely in the handles. The heft of the thick titanium lock side adds to the gravitas of the knife. It is impressive.

While ZT didn’t include Emerson’s signature flat head pivot and Phillips head body hardware, they did borrow the oversize hex head pivot from the 0300 and included some beefy torx hardware and stand offs. They also included a lanyard post, which seems redundant placed next to the two stand offs, but looks to be removable.

Zero Tolerance 0620 Handle

In hand the 0620 feels like a beefed up Emerson – not a bad thing at all. The simple handle design is Emerson ergonomics at its finest. A forward finger groove indexes the finger nicely, and the wide thumb ramp is gently jimped for control and tactile feedback. The rest of the handle is simple and accommodates a wide variety of hand sizes. The 0620 is a pretty thick knife – not amazing in pocket, but excellent in hand. After working with the 0620 for several months I haven’t noticed any hot spots. Job well done by both Ernest and ZT.

Zero Tolerance 0620 in Hand

The pocket clip looks almost as if it were plucked from the Emerson parts bin – it’s a carbon copy of what you would find on the real deal, except of course for the Zero Tolerance Logo emblazoned on it. It is a blackened steel clip, much like what you would find on a Benchmade Griptilian if you have never handled an Emerson. The handle has been drilled and tapped for ambidextrous tip up carry. It’s not super deep carry, but fairly deep. The 0620 is neither small, thin, nor light, but the sturdy clip holds the knife securely in pocket. It carries well for what it is.

Zero Tolerance 0620 Pocket Clip

Deployment and Lockup

Like a real Emerson, the 0620 makes use of both a Wave and thumb disk. Perhaps the most notable point regarding the deployment is the detent – it’s very strong. While it’s possible to flick it open with the thumb disk, the detent is so strong that flecks of my thumbnail often depart with the blade. The wave works well, although frankly waves have never graduated beyond a novelty for me. ZT went with classic phosphor bronze washers for the 0620. Bronze washers are all well and good, but it would have been cool to see them put KVT bearings in like on the 05620.

Zero Tolerance 0620 Lock Up

I have said it before and I’ll say it again, ZT has really dialed in the lockup on their frame locks. Like the past few titanium framelocks from Zero Tolerance I have reviewed, this one comes with a stainless steel insert. Lockup is early (~30%), rock solid, and without stick or blade play. It’s perfect. The 0620 in particular inspires a lot of confidence. The blade slides in to place with a satisfying snap and I wouldn’t hesitate to use the 0620 for harder tasks if necessary. Blade centering is perfect.

Zero Tolerance 0620 vs. Zero Tolerance 0562

Zero Tolerance 0620 Review – Final Thoughts

The 0620 is arguably the best “Emerson” ever. The 0620 is built better and finished better than a real Emerson. It lacks quirks like chisel edges, and a right side tip up carry only pocket clip, but it has been upgraded with carbon fiber, M390 blade steel, and a beefy titanium frame lock. Most astonishing is that the 0620 is still made in the USA and priced for about what a similar size Emerson would cost. Case in point: the Emerson Roadhouse, probably one of my favorite Emerson patterns retails for around $230. This ZT collab comes in a at $240, and is right at $200 if you opt for the less-fancy version with Elmax blade and G10 handle scale.

There is little to nothing I would change about the 0620. In a perfect world I’d mill out the titanium frame lock to try and lighten the knife, and possibly add bearings to make this indulgent piece even more over-the-top. These are minor quibbles. Sure, it is big and impractical for normal person daily carry, but so is a real Emerson.

Zero Tolerance has once again delivered a superior product: high quality materials, beautiful construction, and designed by a legend in the industry. I highly recommend the 0620 for Emerson fans and fans of big, well made folding knives.

Zero Tolerance 0620CF Emerson Tanto Knife
Zero Tolerance 0620CF Emerson Tanto Knife
  • Made in the USA; Wave shaped opening feature; Thumb disk for manual opening
  • Reversible clip (left/right); Frame lock, hardened steel lockbar inserts
  • Steel: Carpenter CTS-204P, stonewashed and satin finish
  • Handle: Carbon fiber front, bead-blasted titanium back
  • Blade Length: 3.6 Inch (9.1 cm); Closed Length: 4.9 Inch (12.4 cm)
Buy on Amazon

I recommend purchasing the ZT 0620 at Amazon and BladeHQ.

Filed Under: Collectable Knives, Emerson, Folding Knives, Hard Use Folding Knives, Made in the USA, Tactical Knives, Titanium Frame Lock Knives, Zero Tolerance Tagged With: carbon fiber, Ernest Emerson, m390, tanto, titanium

Benchmade 581 Barrage Review

by Dan Jackson 18 Comments

Benchmade has always struck me as a company that both innovates and inspires. They can take a functional object, refine it’s performance, and give it a slight twist to elevate a knife something beyond mere G10 and steel. That is a rare accomplishment in the world of production knives, and this handsome 581 Barrage a perfect example.

Benchmade 581 Barrage Review
Buy the Benchmade Barrage at BladeHQ

Buy on Amazon

Simple, robust, and crafted with just a touch of class, I absolutely love the details on this knife. And the details are always so glorious. That’s why I keep reviewing Benchmade knives. They all but beg for a closer examination.

General Dimensions and Blade Details

The 581 Barrage has an overall length of 8.35″, a 3.6″ blade, and the knife weighs 5.2 ounces. This is another Warren Osborne design, and the man is a master for a reason – he’s designed yet another lightweight and functional knife. I’m going to classify this one mainly as a tactical knife, but it would make a nice larger EDC as well. Some might call this a “gentleman’s tactical knife,” and I don’t think there is anything wrong with simply collecting this one either!

The 581 sports a drop point blade, which is a departure from Warren’s usual designs for Benchmade. This is a long sloping blade with a slight amount of belly and a thin swedge running along the top. The blade stock on this knife is 3mm thick, and the resulting tip is quite sturdy. This isn’t a knife with a ton of belly, but it should be fine for most normal tasks. The grind is either a partial flat grind or a shallow hollow grind, it’s difficult for me to really tell, and I don’t think it particularly matters. Either way I’ve found the knife to be a very capable slicer (and it came wickedly sharp).

Benchmade 581 Barrage Blade

Blade steel on the 581 is Bohler M390. This is a powdered steel, and is currently the most advanced blade steel that Bohler makes. Benchmade heat treated this M390 to between 60-62 HRC, and the stuff can really retain an edge. It’s also a high Chromium steel so you have excellent corrosion resistance too. My edge has held up so well that I’ve yet to need to sharpen this knife, despite weeks of carry. I understand that when the time does come to touch up my edge, it will take a fair amount of work. That’s to be expected from a hard and tough super steel like this.

Handle, Ergonomics and Pocket Clip

The handle construction is one of my favorite features of the knife. I know some won’t be fans of the aluminum bolsters, but it’s a unique look and I really like it. From a practical standpoint, this isn’t a cold weather knife (since there is bare metal on the handle) but down here in Florida I’d say it compliments my shorts and sunglasses nicely. Construction is screw together, and in addition to the combination of G10 and aluminum scales, you have full stainless steel liners (milled out to reduce weight), a full backspacer, and a small lanyard hole. It’s a beautifully constructed handle.

Benchmade 581 Barrage Handle

All in all, I’d say the ergonomics on the 581 are quite good. I mentioned the handle is boxy, but that doesn’t mean it’s uncomfortable. There is a good amount of thickness to the handle and it fills the hand nicely. The finger choil region benefits from some grooves that have been milled into the scales. I thought these were merely decorative at first, but they also provide some traction for your index finger. The thumb ramp is completely naked, and I feel like this is another Benchmade design that could benefit from a little jimping (at the slight expense of aesthetics). If you really wanted some traction, you could always cut little slice of skateboard tape and apply it to the thumb ramp. Since this is a tactical knife you may be interested in how the 581 feels in reverse grip – I’m happy to say it feels great. All in all this is a very comfortable knife. I’m not as fanatical about jimping as some, but do I feel like a little jimping on the thumb ramp would round this one out in hand.

Benchmade 581 Barrage Pocket Clip

The pocket clip is a classic Benchmade “split arrow” clip. It’s a great clip, proven time and time again in many of my other Benchmade knife reviews. Retention is excellent, it’s a nice discrete clip, and the knife rides low in your pocket. You have the option of ambidextrous tip up carry – which works great for me.

Deployment and Lockup

The 581 is an assisted opening knife that makes use of dual thumb studs. This is my first review of an axis assisted opener, and I must say I’m quite pleased with it. For normal use I think an assisted opener on a well made knife is unnecessary, but for a tactical knife it could mean the difference between life and death. The thumb studs are very easy to reach and with a little pressure the blade springs to life. This is a very smooth and very fast deploying knife.

Benchmade 581 Barrage Axis Lock

One thing I found extremely interesting about the 581 is that Benchmade covered the pivot with the bolster. So this isn’t a knife that has been designed to be tuned. It basically says “we turned this knife perfectly from the factory, you will never need to service the pivot.” It’s a bold claim, especially for an assisted opener that exerts so much force on deployment. But I’ll tell you, I have no problems with blade centering at all. The knife locks up like an absolute vault, and the blade travels smooth as silk along phosphor bronze washers. And the tolerances on this knife are very very tight. We are almost talking Sebenza tight here. This is a real testament to Benchmade’s quality control and manufacturing capabilities. It’s incredible.

Benchmade 581 Barrage

And of course the lock here is the famous Axis lock. The assisted opening makes 1-hand closing something of a challenge but it’s not impossible. Lockup is absolutely rock solid. The Axis lock has yet to fail me – on any knife. This is a fantastic lock and it rounds out a great knife.

Benchmade 581 Barrage Review – Final Thoughts

Well, there you have it, Benchmade has produced another outstanding knife. By this point in the review half the readers probably assume I’m on their payroll or something, but truthfully I can’t find much to fault with this blade. I love the beautiful lines, the rich details, the excellent materials, and the incredible level of fit and finish. And it never hurts to discover that this knife is made in America. I can’t find a single issue with my knife, although I feel a touch of jimping on the thumb ramp would make the Barrage slightly better in hand.

I know this is a fairly expensive blade with a retail price of around $200, but I feel like this is an instance where you truly get what you pay for. For those out there considering a Benchmade 581 I can totally recommend it. Benchmade has once again taken a humble folding knife, applied their magic, and have created something that appeals to users and collectors alike. Having a 581 in my collection has truly been a pleasure.

Benchmade - Barrage 581 Knife, Drop-Point Blade, Plain Edge, Satin Finish, G10 and Aluminum Handle, Made in the USA
Benchmade - Barrage 581 Knife, Drop-Point Blade, Plain Edge, Satin Finish, G10 and Aluminum Handle, Made in the USA
  • HIGH-QUALITY: The 154CM stainless steel blade is tough, rust resistant, and holds an edge well. The Valox handle is strong and stable, making it ideal for everyday use.
  • WELL-DESIGNED: The Barrage family is the first to feature the AXIS Assist. The Barrage 583 can be opened and closed quickly with either hand.
  • ALWAYS READY: The 583's quick, one-handed opening makes it easy to hold and use. The reversible pocket clip offers ultimate accessibility.
  • VERSATILE: The Barrage 583's tanto blade has a very high tip strength, making it good for tactical uses. It's also versatile enough for everyday applications.
Buy on Amazon

Benchmade 581 Barrage on BladeHQ
Benchmade 581 Barrage – $204.00
Retail Price: $220.00
from: BladeHQ

I recommend purchasing the Benchmade Barage from Amazon or BladeHQ. Please consider that purchasing anything through any of the links on this website helps support BladeReviews.com, and keeps the site going. As always, any and all support is greatly appreciated. Thank you very much.

Filed Under: Assisted and Automatic Knives, Benchmade, Collectable Knives, EDC Knives, Folding Knives, Made in the USA, Tactical Knives, USA Made EDC Knives Tagged With: axis lock, m390, Warren Osborne

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