- Why does Cold Steel no longer make Carbon V knives?
- Where are Cold Steel products made?
- What is San Mai III®?
- Which knives are made with San Mai III?
- What is VG-1 Stainless Steel?
- What is 4116 Krupp Stainless Steel?
- What is 1055 Carbon Steel?
- What is SK-5 High Carbon Steel?
- What is AUS 8A Stainless Steel?
- What is 420 Sub Zero Quench Stainless Steel?
- What is Rockwell Hardness?
- What is the difference between a Saber Grind
and a Flat Grind?
- What is the difference between a Rolled
Edge and a Cantled Edge?
- Does Cold Steel re-sharpen knives?
- Will Cold Steel re-sharpen my serrated
knife?
- How can I re-sharpen my serrated knife?
- Does Cold Steel sharpen knives made by
other manufacturers?
- What Angle are Cold Steel knives sharpened?
- How do you sharpen a Cold Steel knife?
- Can a false edge be sharpened?
- Are Cold Steel knives guaranteed?
- Are Cold Steel knives still guaranteed after they've been sharpened by someone other than Cold Steel?
- What is Cold Steel's return policy?
- Do all Cold Steel knives have a full tang?
- How is Kraton® attached to the handles of Cold
Steel knives?
- How are Cold Steel Tomahawks made?
- Did the Tanto really go through the car door?
- Why does the Safe Keeper III have a hole in its
blade?
- Are push knives illegal?
- What is the maximum legal blade length that can
be carried?
- What is "Blueing"?
- Can Cold Steel knives be blued?
- Can I leave my kitchen knives in the sink or
in the dishwasher?
- What does Cold Steel recommend to remove stains
from their knives?
- Does Cold Steel ever make custom knives?
- Do all Cold Steel knives come with a sheath?
- Does Cold Steel sell replacement sheaths?
- My pocket clip is broken. What do I do?
- How do I become a Cold Steel dealer?
- I live outside the United States. Can I receive
the free DVD and Catalog?
- Is the DVD "Region Free?" Will it play on
DVD players in other countries?
- Does the 10% Public Service discount apply to
international personnel?
- What is the difference between the Imperial
and Warrior Series swords?
- Does Cold Steel have a company store?
Q: Why does Cold Steel no longer make Carbon V knives?
We have been making knives in the USA out of our exclusive Carbon V steel since 1987. For the past two years, we have done all in our power to support the factory making Carbon V knives for us, but they have continued a downward spiral and are now in a very severe business and financial crisis and have lost almost their entire workforce.
We will, however, continue to make just about every formerly Carbon V steel knife in either VG-1 San Mai Laminated Stainless steel, 4116 Krupp Stainless Steel or free forged 1050 high Carbon steel.
Q: Where are Cold
Steel products made?
Our products are manufactured world wide. Most items are made in Japan,
Taiwan, or China.
Q: What
is San Mai III®?
San Mai means "three layers". It's the term given to the traditional
laminated blades used by the Japanese for swords and daggers. Laminated
construction is important because it allows different grades of steel to
be combined in a single blade. A simple way to think of this type of construction
is to imagine a sandwich: The meat center is hard, high carbon steel and
the pieces of bread on either side are the lower-carbon, tough side panels.
The edge of the blade should be hard to maximize edge holding ability, but
if the entire blade was hard it could be damaged during the rigors of battle.
For ultimate toughness the body of the blade must be able to withstand impact
and lateral stresses. Toughness is generally associated with "softness"
and "flexibility" in steel, so that, surprisingly, if a blade
is made "tough" the edge won't be hard enough to offer superior
edge holding. San Mai III® provides a blade with hard (higher carbon)
steel in the middle for a keen, long lasting edge and tougher (lower-carbon)
steel along the sides for flexibility.
Q: Which knives are
made with San Mai III?
As of January, 2007, the following knives were being made in San Mai III®:
All of the knives in the Tanto Series (#13BN, #13MBII, #13MBIX, & #13MBXII),
The Tai Pan (#13D), The Black Bear Classic (#14BBCJ), The Military Classic
(#14R1J), The Natchez Bowie (#16ABSJ), The San Mai Laredo Bowie (#16CCB),
The San Mai Trail Master (#16JSM), The Outdoorsman (#18H), The San Mai Gurkha
Kukri (#35ATCJ), Master Hunter Plus (#36G), Master Hunter (#36JSK), The
San Mai Recon Scout (#37S), The Konjo I and II (#60SK & 60SKL), The
Sisu (#60SS).
Folding knives with San Mai Steel are: The Black Sable (#60BS), The Black
Talon (#60BT), The Caledonian Edge (#60CE), The Hatamoto (#60H), The Spectre
(#60SF), & The Talwar Folder (#60ST).
Q: What
is VG-1 Stainless Steel?
When considering a new material for a performance upgrade for the Cold Steel®
Tanto, we tested seven different grades of steel including Shiro 2, V-SP-2,
10A, 440C, VG-10, ATS 34, and VG-1. Physical testing for sharpness, edge
retention, point strength, shock, and ultimate blade strength showed that
while many of the steels had increased performance in one or two testing
categories, only one, VG-1, showed the greatest performance increases in
the most critical categories. With an outstanding ability to retain an edge
and proven strength in point and blade tests, VG-1 will provide Cold Steel®
customers with superior performance previously unavailable in a stainless
steel blade.
Q: What is 4116 Krupp
Stainless Steel?
4116 is a fine grained, stainless steel made by ThyssenKrupp in Germany
and is used for hygienic applications (medical devices and the pharmaceutical
industry) and food processing which make it a superb material for kitchen
cutlery. The balance of carbon and chromium content give it a high degree
of corrosion resistance and also impressive physical characteristics of
strength and edge holding. Edge retention in actual cutting tests exceeded
blades made of the 420 and 440 series of stainless steels. Other alloying
elements contribute to grain refinement which increase blade strength and
edge toughness and also allow for a finer, sharper edge.
Q: What is
1055 Carbon Steel?
1055 steel is right on the border between a medium and a high carbon steel,
with a carbon content between 0.50%-0.60% and with manganese between 0.60%-0.90%
as the only other component. The carbon content and lean alloy make this
a shallow hardening steel with a quenched hardness between Rc 60-64 depending
on exact carbon content. These combination of factors make this one of the
toughest steels available because, when quenched, it produces a near saturated
lathe martensite with no excess carbides, avoiding the brittleness of higher
carbon materials. This steel is particularly suited to applications where
strength and impact resistance is valued above all other considerations
and will produce blades of almost legendary toughness.
Q: What
is SK-5 High Carbon Steel?
SK-5 is the Japanese equivalent of American 1080, a high carbon steel with
carbon between 0.75%-0.85% and 0.60%-0.90% manganese. As quenched, it has
a hardness near Rc 65 and produces a mixture of carbon rich martensite with
some small un-dissolved carbides. The excess carbide increases abrasion
resistance and allows the steel to achieve an ideal balance of very good
blade toughness with superior edge holding ability. Due to these characteristics,
this grade of steel has been used traditionally for making a variety of
hand tools, including chisels and woodcutting saws, and has stood the test
of time and use over many years in many countries.
Q: What is AUS 8A Stainless Steel?
The words "stainless steel" are misleading, because, in fact,
all steel will stain or show discoloration if left in adverse conditions
for a sufficient time. Steel is made "stainless" by adding Chromium
and reducing its Carbon content during the smelting process. There is a
serious performance trade-off with stainless steel. As the Chromium increases
and the Carbon decreases, the steel becomes more "stainless".
But, it also becomes more and more difficult to sharpen, and the edge-holding
potential is seriously impaired. This is usually why most stainless knives
are rarely razor-sharp and quickly lose what little edge they have. In contrast,
at Cold Steel® we use AUS 8A Stainless, a high carbon, low chromium
steel that has proven itself to be the ultimate compromise between toughness
and strength, edge holding, and resistance to corrosion.
Q: What is 420 Sub Zero Quench Stainless Steel?
Cold Steel® has always sub zero quenched the blades that we have manufactured in Japan, and we are now adding this often omitted, yet crucial, process to the heat treating sequence of the new blades we are making in Taiwan.
Typically, stainless steel blades suffer from retained austenite after they have been heated to critical temperature and then air or gas cooled. The big drawback of this procedure is that it doesn’t get the blades cold enough to assure complete transformation from an austenite to martensite grain structure. Only by freezing—sub zero quenching—stainless blades to 120 degrees below zero (Fahrenheit), will the austenite be completely transformed to martensite. This assures the blade will be as hard, strong, and wear resistant as it can possibly be.
Q: What is Rockwell Hardness?
The hardness of steel or other metals is usually measured on a scale called
the "Rockwell Scale", this scale gives a number value to the hardness.
This number is preceded by the letters Rc (for example Rc58). High numbers
indicate harder material. If a knife is too "soft" meaning it
has too low a Rockwell hardness, it will probably not hold an edge and will
bend quite easily. If a knife is too "hard" meaning it has too
high a Rockwell hardness, it will probably be very brittle and difficult
to re-sharpen. When a knife is designed, it is important to determine from
the beginning what kind of hardness will be required for its ultimate purpose.
This will affect the choice of steel. Once the steel is chosen, a heat treatment
sequence must be devised to result in the exact hardness needed in the final
knife.
Q: What is the difference
between a Saber Grind and a Flat Grind?
These two grinds are quite similar. They are both actually "flat",
as opposed to concave (hollow ground) or convex. However, a "Flat ground"
blade is typically ground uniformly from the blade back right to the edge.
Where as in a "Saber ground" blade, typically only half the width
of the blade is ground. The rest remains full thickness, like a traditional
saber, hence the name.

Q: What is the difference
between a Rolled Edge and a Cantled Edge?
A Cantled Edge is the most widely used edge configuration. It consists
of a final grind along the very edge of the primary grind. This final grind
forms the sharp edge of the knife. One of the main reasons for its popularity
is that the cantled edge is fairly simple to apply by hand or machine. It
is also relatively easy to control the angle of the cantle to achieve a
desired degree of sturdiness or fineness to the finished edge.
The Rolled Edge has been in existence for over 1,000 years and has
been used by bladesmiths all around the world. But today it is quite
rare in the knife industry. Some of the finest examples of this edge
can be found on early Japanese Katanas. It consists of a continuous curve
from the primary grind right to the edge of the knife. There is no "cantle"
at the edge visible to the naked eye. The only knife that Cold Steel currently
makes with a rolled edge is the Stainless Trail Master. A rolled edge is
quite difficult to produce in custom quantities and practically impossible
in full scale production. The reason for this is that it must be applied
by hand, using a "slack belt". The honer must constantly monitor
his progress very carefully to develop a perfect rolled edge.
However, the result is a cutting edge that will easily outperform a standard
cantled edge, because it offers almost no friction during a cutting stroke.
It slips effortlessly through the cutting medium. Apart from the difficulty
of manufacture, the drawbacks to this type of edge are that it is typically
very fine. This means that it is subject to chipping if it comes in contact
with very hard materials such as bone. It is also difficult to re-sharpen
by someone inexperienced with rolled edges. The only recourse for this individual
would be to send the knife back to Cold Steel for factory resharpening or
to develop a cantled edge in place of the original rolled edge.
Q: Does Cold Steel re-sharpen
knives?
Yes. We charge $10 for a fixed blade and $7 for a folding knife. Send the knife and payment to Cold Steel for evaluation and or repair. It is recommended that you use a trackable shipping method (UPS, FEDEX or US Mail (signature required). Include a note with your name, address, phone number and a brief description of the issues you want to resolve. Please send it to 3036-A Seaborg Ave., Ventura, CA 93003, USA. We re-sharpen knives in batches, so it may take from 6 to 10 weeks before your knife is returned to you.
Q: Will Cold Steel re-sharpen
my serrated knife?
Yes. Just send the knife with $7 payment to Cold Steel (3036-A Seaborg Ventura,
CA 93003) and we will take care of it. Please note that we re-sharpen knives
in batches, so it may take up to 12 weeks before your knife is returned
to you.
Q: How can I re-sharpen
my serrated knife?
With care, your new knives will remain sharp for a very long time and may
never need to be resharpened. If they do start to need resharpening it can
be done in one of two ways: First, the back of the serrations can be lightly
honed with a standard sharpening system to bring back the edge on the points
and flats of the serrations. This method is fairly quick, but if done too
aggressively or too often, it will damage the serrations.
Alternately, a sharpening system with very fine angles can be used to sharpen
between the serrations on the front of the knife. This technique is quite
time consuming but it is the only way to restore the edge properly. At the
moment, we recommend the Sharpmaker system by Spyderco.
Q: Does Cold Steel sharpen
knives made by other manufacturers?
No. To avoid potential warranty problems with other companies we are not
able to offer this service.
Q: What Angle are Cold Steel knives
sharpened?
This question assumes that you are interested in resharpening a Cold Steel
knife. Our knives run a wide range of materials, grinds, types of edge and
dimensions, depending on the size, shape and ultimate purpose of the knife.
So there is no single edge bevel angle we can recommend. For example actual
measured cantle angles for various model Tantos are 25.79°, 30.99°
and 28.15°. We suggest that you use whatever angle most closely matches
the one already established on the original factory edge. Generally, we
recommend 23° to 25° as a guiding standard.
Q: How do you sharpen a Cold Steel
knife?
The theory of sharpening is quite simple, although in practice it requires
patience and experience to become proficient. The basics are as follows:
Start establishing a cantle with an abrasive (stone, sanding belt, etc.).
Then further define the cantle by refining the scratch pattern with a series
of progressively finer abrasives. A good way to see whether your edge is
almost done is to look for the burr that forms along the edge and see if
it is consistent all along the length of the edge. Once you have a consistent
burr, remove it with a finer abrasive or a strop and your edge is finished.
For stainless steels: If the edge requires repair (to remove chips
or dinks) or if the cantle has to be reestablished one should begin with
a coarse silicon carbide stone (Norton's Crystolon Bench Stone). Initial
sharpening should be done with a medium silicon carbide (Norton's Crystolon)
or medium aluminum oxide stone (Norton's India Stone). To further refine
the edge a fine aluminum oxide stone (Norton's India Stone) would be the
next step, followed by a Soft Arkansas for final sharpening. If an extremely
refined edge is desired, follow the Soft Arkansas with a Hard Arkansas or
6000-8000 grit Japanese Water Stone. Any ceramic system will work if there
is not going to be a lot of material to be removed along the edge (the Sharpmaker
by Spyderco is especially good for serrated models).
For carbon steels: The same procedure as listed above will work for
carbon steels but we have had better results using only the Japanese water
stones (Japanese water stones can be found at most woodworking supply stores
and catalogs). We suggest beginning with an 800 or 1000 grit water stone
and progressing through a 1200-1400 grit and finishing with a 6000-8000
grit stone.
Rolled edges: A rolled edge can be sharpened to its original configuration
by using a slack belt on a belt sander (320-400 grit belt) to get a consistent
burr and then polishing the burr off with a buffer or leather strop. One
can also simply redefine the edge by establishing a cantle on it as outlined
above.
Q: Can a false edge be sharpened?
Yes, all our blades which have a false edge can have that edge sharpened.
This is because the heat treatment is consistent throughout the blade. However,
Cold Steel will not sharpen the false edge on a Cold Steel knife, because
of time and safety reasons.
Q: Are Cold Steel knives guaranteed?
We stand behind our knives 100%. We subject them to the highest standards
in the industry and strive to make each one as perfect as possible. Right
now our return rate for defects is one half of one percent! This is remarkably
lower than the industry standard. While we are growing in popularity, and
producing ever larger quantities of knives, we are determined to never forget
that we live or die by a single word, QUALITY.
Our fixed blade sheath knives have a 5 year warranty to the original owner
against defects IN materials or workmanship. Our folding knives are likewise
warranted for 1 year. If you ever have a warranty problem with one of our
knives, please return it with your original receipt and a short note and
we will be happy to evaluate the problem and resolve it.
(NOTE: Do not send your knife back by way of the U.S. Post Office. We recommend
you send it U.P.S. insured.) Please remember ANY knife can be broken or
damaged if subjected to sufficient abuse and that ALL knives eventually
wear out (just like your boots) and must be replaced.
Q: Are Cold Steel knives still
guaranteed after they've been sharpened by someone other than Cold Steel?
It depends. We have received knives back that have been almost totally destroyed
by resharpening on power grinders etc. In fact, some bear almost no resemblance
to their original shape! If the knife is damaged in this manner, by inexperienced
or overzealous resharpening, it will not be replaced, since this is not
a defect in materials or workmanship. However, if the knife fails structurally
while in normal use after it has been correctly resharpened, it is still
covered by our warranty.
Q: What is Cold Steel's
return policy?
When you buy a knife from a dealer please ask about his return policy. Each
store has its own policy. Some will offer a full credit, others will allow
you to exchange for an item of equal value. If you are ever dissatisfied
with a Cold Steel product because it breaks in normal use or is in some
other way defective, please return it to us with a short explanation of
what happened. We will be happy to evaluate the situation and resolve the
problem.
Q: Do all Cold Steel knives have
a full tang?
Full tang construction is an important consideration when evaluating the
strength of a knife. Originally, "full tang" meant a handle in
which the edges of the tang are visible all around the outside of the hilt,
so that the tang is fully as wide as the knife handle. However, with the
advent of "driven-on" Kraton® handles, full tang has come
to mean that a very substantial tang extends completely through the center
of the handle right to the back of the pommel. This describes the tangs
on all premium Cold Steel knives.
Q: How is Kraton® attached to
the handles of Cold Steel knives?
To the best of our knowledge, Cold Steel was the first knife company in
the U.S. to use Kraton® for the handle of a knife. Obviously we were
correct in our choice of this material, because over the last 18 years almost
every major manufacturer has adopted it for knife handles. There are two
main ways to build a Kraton® handle.
The first is to make a "driven-on" handle. This is where the Kraton®
handle is heated up to expand it slightly, then driven on top the tang of
the blade. Once in place it can be held there by a ferrule or a bolt.
The second method is to make a "shot-on" handle. In this type
of construction, the liquid Kraton® material is injected under heat
and pressure around the tang of the blade where it hardens. Once it has
hardened it is permanently attached to the tang and needs no bolts or a
ferrule.
Q: How are Cold Steel Tomahawks
made?
Cold Steel tomahawks are precision drop forged from 1055 carbon
steel. During the forging process a metal ingot is heated almost white hot
and then formed into shape in a series of progressive dies. The large steel
dies are fixed to enormous compressed air hammers with hundreds of tons
of power behind every strike. Each die, hammers the hot metal into a gradually
more finished shape. During this forming process the steel is kneaded and
compressed into a completely homogenous mass. And this, in turn, makes it
extremely tough and strong. Like all good tomahawks, Cold Steel's are differentially
heat treated. This means that the cutting edge and hammer face is fully
hardened, while the balance of the head is left relatively soft to absorb
the shock of striking blows. Drop forging not only creates a superior product,
but it is also an extremely efficient method of manufacture. The quality
of our drop forged tomahawks is superior to custom, hand forged hawks costing
three and even four times more!
Q: Did the Tanto really go through
the car door?
Yes, this has been done in repeated tests without damage to the point. It
has also been done in "real life" situations where the Tanto was
used to cut the lock out of a car door to free a person trapped inside the
vehicle. It is important to note that the point of the Tanto is undamaged
after this ordeal. Some people discount this test because they say that
some cheaper knives can also be hammered through a car door. But what they
fail to realize is that none of these cheaper knives will have a usable
point afterwards!
Q:
Why does the Safe Keeper III have a hole in its blade?
This is simply a design feature to add interest and to lighten the blade.
Q: Are push knives illegal?
That depends on the blade configuration (length, single or double
edged) and your local laws. We cannot give a legal opinion.
Q: What is the maximum legal blade
length that can be carried?
That depends on the blade configuration (single or double edged)
and your local laws. We cannot give a legal opinion. It is your responsibility
to determine the legal position in your own area.
Q: What is "Blueing"?
Blueing is a process applied to the blade to offer a protective,
less-reflective coat. There are many commercially available packages for
both hot and cold blueing. The process results in a blue-black surface on
the blade of the knife. It can be quite difficult to get an even bluing
over the whole blade. Cold steel does not endorse or recommend this process.
Also please see the next item.
Q: Can Cold Steel knives
be blued?
Yes, but this is extremely difficult with the stainless steel
models. However, all the carbon steel models can be either hot or cold blued.
Please note that this blueing may affect your warranty.
Q: Can I leave my kitchen knives
in the sink or in the dishwasher?
The short answer to this is no! Most stainless kitchen cutlery
is made from high chromium, low carbon steel. This makes it very "stainless",
in that there is no carbon to discolor, even if the knife is left soaking
in water for weeks. But it also means that it is practically impossible
to sharpen to a good edge and that whatever edge it has will be lost very
quickly.
At Cold Steel we use very high carbon stainless steel for our kitchen knives.
The same steel, in fact, as in the Tanto. This allows us to create a blade
that is very thin and incredibly sharp, while still remaining very strong.
Unfortunately the trade-off means that the blade requires a little more
care than some of your other stainless cutlery. For example, it is not recommended
that you use your Cold Steel Kitchen Knives to saw through frozen food or
to cut bones, as these actions will surely damage your blade. These small
shortcomings, however, are more than offset by the phenomenal performance
of the knives.
Although they will survive being in the dishwasher this is not recommended
(apart from potential staining, the fine edge can be easily damaged in contact
with other steel cutlery). They should never be left standing in water or
left in damp conditions for any length of time. To keep our kitchen knives
in the best possible condition, we recommend that the knives are rinsed
in water, dried and put away immediately after use, as with any fine cutlery.
Any discoloration that may occur over time, will not effect the performance
of the knives.
Q: What does Cold Steel recommend
to remove stains from their knives?
Any of the mildly abrasive polishing pastes like Flitz or Simichrome.
These are available at most hardware stores and gun stores.
Q: Does Cold Steel ever make
custom knives?
No, but there are hundreds of custom knifemakers in this country
that would be glad to make a knife to your exact specifications. Listings
can be found in any of the knife publications (Blade Magazine, Knife World,
Knives Illustrated) or any of the Knife annuals.
Q: Do all Cold Steel knives come
with a sheath?
Most of our fixed blade models come with sheaths; they are either
made of Concealex, Cordura, or Leather.
Q: Does Cold Steel sell
replacement sheaths?
Yes, we do. Please call for price, style and availbility.
Q: My pocket clip is broken.
What do I do?
Cold Steel sells replacement clips. Metal clips are $5.00 plus
$2.50 shipping. We are no longer replacing the older style Voyagers with
broken plastic clips, instead, as a courtesy, we will replace the product
at 40% off of the Suggested Retail price.
Q: How do I become a Cold Steel
dealer?
We need a copy of one of the following: 1) your business license,
2) tax ID form (not just the number) 3.) your FFL, or 4) a resale certificate.
Q: I live outside the United
States. Can I receive the free DVD and Catalog?
The free DVD and catalog offer is good only for residents of
the United States. We will send a catalog and DVD to foreign countries for
a nominal shipping charge. Canada is $5.00. All other countries $15.00.
Please send a money order to Cold Steel for the amount in U.S. dollars or
phone us with a credit card number at 805-650-8481.
Q: Is the DVD "Region Free?"
Will it play on DVD players in other countries?
The DVD is region free and will play on virtually all DVD players
world wide.
Q: Does the 10% Public Service
discount apply to international personnel?
No. The 10% discount applies only to U.S. public service personnel.
Q:What is the difference between
the Imperial and Warrior Series swords?
We are aware that there are some people who want a battle ready
sword but hope to find one at a more reasonable price than our Imperial
Series swords. Our Warrior Series address this problem directly. In our
efforts to reduce the costliness of the blades, we have omitted the expensive
mirror polishing that we used on the Imperial swords and used a more practical
finish. The Warrior Series shares the same steel, heat treatment, and sharpness
of their more expensive counterparts.
Q:Does Cold Steel have a
company store?
We do not have a store in our building. Please call 1-800-255-4716
and we will give you the location of the nearest dealer or retail outlet
selling Cold Steel products.
Blade Terminology