Category Archives for "Blogs"

First Look: Shadow Tech’s Trail Blazer

 Imagine a holster company designing a holster and not having a gun to fit.  Improbable?  Maybe not.  What if the company wants to start competing in a new area but needs something to fit it. 

Stoner Holster contacted one of my favorite knife companies, Shadow Tech, with a request, “Can you build us a knife to fit this sick leather sheath we want to make?”
The answer appears to be yes!


ST's Trail Blazer
My first look at the Trail Blazer

I saw the prototype; ST calls it the Trail Blazer.  It’s mega cool. 
The saber grind blade is 5.75 inches long and a quarter inch thick at the spine and sports aggressive cross-cut saw teeth.  The full tang handle is also 5.75 inches long and features Micarta grips providing a solid and substantial grip.

fixed blade


The blade is 8670 steel used in the lumber industry for large circular saws because of its toughness and edge retention abilities.  The blade has a 60 Rc hardness.  The blade isn’t stainless and the powder coating helps protect the blade.  You have to do your part with a little oil on the exposed metal. 


Those are some aggressive saw teeth! 
The leather sheath can be adapted for a tactical molle system, or different width belts.  The sheath contains a small pocket and a loop for a fire starting ferro stick.  The one I got to see had a small diode light and a permanent match.

Back of Sheith showing arrangement.  Note the diode light. 


This is a prototype so expect changes.  I understand Dot Snaps will replace the current ones to give the sheath more reliability.  John tells me the grip will change slightly with a slight swelling to help grip the knife.


I don’t know if the leather and micarta will stay these colors or if options will be available.  I also don’t know how the blade cuts or will resharpen.  Will the handle fit my hand or will hotspots develop after a couple hours of work needs to be answered later.  I would not be surprised if the dimensions change a little in length.  Again, this is a prototype.


I would have liked to seen a small sharpening stone.  8670 steel may have great edge retention, but all steel loss sharpness during use.




Still this is a very cool knife and it will be available in May.  Hey, that’s next month, so if you want one, you better preorder now or expect you’ll have to wait later on.


Go to http://www.stknives.com/ to order your own Shadow Tech Trail Blazer. While you’re there take a look at some of the other knives they have. You can also call them at 614-648-1297. 

Truck Driver Trapper

I don’t have a type.  I mean there are virtues and disappointments everywhere, but this one must have been singing my song because I heard it loud and clear.


The knife has been carried, but never used or resharpened.

It’s a trapper pocket knife with a coal truck embossed into the jet black handle.  Trappers typically have two blades and mine is no exception.  It sports a traditional 3 inch clip point blade and a funky 3 inch spay blade used to neuter stock animals and occasional bad guys in novels.

Etched and colored main blade
You can see the tang stamp on both blades


The clip point is etched in red with “American Coal Haulers.”  Both blades are tanged stamped with a crown and the reverse is stamped “Hardin Germany.”



It’s a well-made knife.  Separate springs for each blade with no half open stop but a positive inclination to close and snap when the blade opens.  The liners are brass and even the springs inside the knife are mirror polished.  The blades don’t have any wiggle and whoever owned it before me took good care of it.


Who made it is a more complex story.  It seems there is no knife company called Hardin nor is there any town in Germany which goes by that name.


Tang Stamp
One of the knife forums suggested the crown logo is the key to unlocking this mystery.  It appears the crown is the trademark for the Friedrich Olbertz Knife Company in Solingen Germany.  It was founded in 1872 and produces brands such as Bulldog, Fighting Rooster and Eyebrand.

Still in existence, they are a knife jobber specializing in small knife lots.  The current management team is fifth generation family members.  The current minimum order is 600 units. 



So who is Harden? That took a little more work.


They are Harden Wholesale located in Kenova WV.  I called them and the staff remembers the knife as being ordered by George Smith in the 1980s, but nothing else.  I tried the phone number given to me, but Mr. Smith remains a mystery.  Maybe the phone number and name is just good old boy WV humor.


Made in Germany


Hardens Wholesale appears to be a seller of dry goods.  The photo I found showed plastic flowers for grave decorations, Carharrt clothing and Wolverine work boots.  I’m sure a trapper pocket knife celebrating any aspect of the WV coal mining industry would be a hit.


In any case, I’m happy to have it.

Edging Along

Ceramic knives have amazing edges.  By amazing I mean sharp with long term edge retention.

Basic folding ceramic pocket knife
Ceramic knives are typically made from zirconium dioxide (AKA zirconia).  Many manufacturers produce these blades through dry-pressing followed by firing of powdered zirconia. 

The resulting blade has a hardness of 8.5 on the Mohs scale of mineral hardness.  At the top of the scale sits diamond with a 10 while steel ranks 4.5 for normal steel  This means a ceramic knife blade is significantly harder than steel edges.  So the resultant blade stays sharper longer.  The downside is it is less elastic and more brittle than a steel edge.
 

These knives are typically designed for food preparation like slicing boneless meat, vegetables, fruit and bread.  The non-reactive nature of the zirconia means it will not be affected by acid foods like lemons, apples or tomatoes.


Like many minerals, zirconia undergoes several phase transitions which can weaken the blade.  Minerals like calcium, magnesium and/or yttrium oxides can be added to stabilize the blade.  These produce a white ceramic.  A black-colored blade results from adding a hot isostatic pressing step, which increases the toughness.


The blade is electrically non-conductive and non-magnetic so it isn’t seen by metal detectors.  You’ll often find small ceramic blades sold as part of a self-extraction kit hidden in your clothing in those countries when kidnapping is a national sport. 


The factory new edge looks like this:

up close with a zirconia blade
I’m guessing each of these defects are about 200 um in length.  Could be from having blades in contact with each other  at the factory.
new zirconia knife edge
Looking straight down on the edge, even at +63 X magnification, the edge is difficult to find.
But even here small defects from manufacturing can be found.  While very tiny, they could be beginning of larger ones. 

After enough years your edge will have sections like this:

Used zirconia knife edge
Seven year old edge,the big defect looks about the length as the new edge, but deeper. 

Dirty Harry once said a man has to know his own limits.  With care the blade will last for years before sufficient damage forms to the blade edge making the knife unusable.  The edge photographed to show you these defects still has years of cutting left in it.

used zirconia knife edge
Despite the ‘dull’ spot this edge has plenty of life left.


Last word, don’t try sharpening it yourself.  Even with fine diamond powder, any uneven pressure will only cause more damage.  Many of the manufacturers have a sharpening program you can take advantage of. 

Chinese Lum

Happy St. Patrick’s Day!

I thought I would do something in green to commemorate the saint that drove the snakes out of Ireland and caused so many others to see them.


It was October 2002 and Knives Illustrated published my very first knife article. It was about the green handled Spyderco Lum.  I wonder what I would say now if I was writing the article.


Knife illustrated
2002 cover with my article, and no, I didn’t make the cover.

I’d tell you more about the steel.  Its Japanese steel designed by Takefu Special Steel Co. Ltd aimed at Japanese chefs.  But since the steel is cooked with 1% carbon, 15% chromium, 0.2% vanadium, 1.5% cobalt, and spiced with 0.5% manganese and 1% molybdenum, it was soon popular with many knife companies.

Spyderco Lum folder


At the time it was a super-steel but now is considered simply really good steel.  It compares well with ATS-34 and 154CM but the higher vanadium levels produce smaller grain size and better stain resistance and toughness.   We’re talking edge retention improvement here.  Spyderco told me the hardness was in the 58-60 Rc range.  The blade was offered as a plain edge as mine was or fully serrated.


The blade is a flat grind with a tapered leaf shape associated with many of Lum’s designs.  The green Almite-coated handle is chamfered to soften both the looks and provide a comfortable grip.  The knife is set up for right carry with an option to alternate between tip-up and tip-down.  I’m a big fan of tip-up carry so I never changed it.


Back of Lum folder, spyderco



Almite is an anodic oxidation process of aluminum with very good hardness.  

Bob Lum was born and raised in Astoria, Oregon and between hunting and fishing and his work as a freelance photographer he developed a keen eye for blade shapes and edges.  He started making knives in October 1976 and is considered the popularizer of the “tanto” style which he based on older classic Japanese style.  The interest in tantos has not faded.  They have generated a love-hate interest in the knife community and will remain an important blade option. 


spyderco lum
Bob Lum’s chop.  A nice touch of class.



Lung cancer took Bob on December 4, 2007 at age 64. 


Shakespeare wrote “..the good is often buried with their bones.”  He is wrong in this case.  Many of Bob’s designs and sketches are still being uncovered and sold to top end knife companies.  His son and wife are involved with producing his ideas and you can find them at http://www.boblumknives.com/welcome.html

I still carry my Lum.  It has become a dress knife and I wear it for weddings, funerals and anytime I need to notch up my attire beyond business casual.  Spyderco still has Lum designs, but if you want a green Lum Chinese folder, you’re in for a search.  Good Luck!


Remington Knives

 

Most of us think of shotguns when we read about the Remington Arms Company.  Founded in 1816 in upstate New York, Remington holds the record for the nation’s oldest continuously operating manufacturer.  It still operates in the original, but updated plant, in Ilion, NY.

Remington also makes some of us think of knives as well.  It’s only natural that a cross-over product is popular with the blade and gun crowd:  the Bullet Knife.


Bullet, knife
Has a buck look, doesn’t it

The first Bullet knife was introduced in 1922. Many variations of this collectible knife have been created since that time.  These knives are often produced in limited qualities creating demand and keeping the price up as well.  They are highly collectible.   More modest lines are also created for users with limited resources who want a quality knife, but not a special edition.

It should be no surprise in this day and age that Remington does not actually make their knives.  Like S&W they license their brand.  I will not say anything unkind about S&W knives.  For the price they are a serviceable knife.

Buck Knives has the current license and will be producing the 2019 Remington Cutlery lineup.  In 2017 they acquired the Remington license and have continually produced quality knives with the Remington stamp.


Tactical knife

It should come as no surprise that 420J2 blade steel will be the principle blade steel.  Buck has extensive experience with it and produces a solidly performing blade.  420 steels range in carbon content between .15% and .40% with 12-14% chromium.  The steel reaches a hardness of 57RC after suitable heat treatment. Buck is famous for their proprietary heat treatment.  420B ( 420J2 ) is an economical, highly corrosion resistant stainless steel also used in diving knives.

A super steel?  No.   But one you can count on?  Yes.

Remington is doubling their Buck-produced tactical knife line for 2019.  You can find assisted opening, tanto and partial serrated blades as well as the classic drop point and plain edge, all with 420J2 steel


Remington knife
A nice EDS knife

EDC Line

While I carry what might be considered a tactical EDC, Remington also has a smart line of EDC.  These are medium to small pocket knives you can utilize at work, church and play without anyone thinking twice about it.

All Remington products are backed by a Lifetime Warranty. Find out more at www.RemingtonCutlery.com

Knife Review: ZT450CF

Ah…Belarus, a small Eastern European landlocked country best known for its Stalinist architecture and grand fortifications.  If you’re stopping for a tour, make sure you visit KGB Headquarters looming over Independence Square and the many Great Patriotic War monuments commemorating the country’s role in WWII.


Sounds bleak, doesn’t?  Especially the tour of KBG headquarters which could last 20 to 30 years.


Zero Tolerance, Knife, Belarus
I really like the carbon fiber handle.

From this country comes Dmitry Sinkevich, knife maker and artist.  His knife designs are snapped up by companies like Spyderco and Zero Tolerance.  It only takes a simple look to see why.

Let’s look at his design, the ZT 450CF for example.  The knife sports a 3.25 inch slice of CPM S35VN.  More on this steel later.  The blade is a saber grind, drop point with a long false edge and flipper.  The blade glides open on KVT ball bearings.  The front of the handle is carbon fiber and backed with titanium.

The clip is reversible and provides a relatively low profile look when pocketed.

This makes for a very trim and graceful knife weighing in at 2.45 ounces. 

The lock mechanism is a standard frame lock, but because titanium can’t be hardened to the same values as steel, the locking bar sports a small steel insert that serves two functions in addition to locking the knife open.  One, it takes the wear of contacting the steel blade and two, acts as a stop to prevent the bar from being pushed out beyond its elastic limits.  The insert, in case you were wondering, is replaceable.


Dmitry Sinkevich, knife
The carbon fiber is striking.  This is a very nice Gent’s Knife.


S35VN is martensitic steel which contains 3% vanadium and 0.5% niobium in addition to chromium.  All three elements are carbide formers, but chemical properties favor the formation of vanadium and niobium carbides over chromium.  These two carbides are harder and finer in size than chromium carbide and reinforce the steel more. 


Tests by CPM indicate the steel has better edge retention, less wear and more corrosion resistance than many steels including 440C and D2. 


knife
I like the open back and the green spacers are just for fun and very cool.


The knife is strikingly impressive in my opinion.  It fits my hand and the blade flicks out on the KVT ball bearing.  The knife is set up for tip-up carry and the clip is reversible for left or right carry.


I can’t take it for a test run, as it’s not mine to use.  If ZT would like to send me a writer’s sample, I’ll run some cutting tests and expand this. 


The Sinkevich ZT450CF is light, trim and comfortable to use knife which is, bladed with a techno steel to give you long life and edge retention.  Frankly, at the retail price of $245 it looks like a bargain. 


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