Relentless Knives USA newsletter
by: Daniel M. Certo

Committed to Excellence Designed  for Maximum Efficiency                             
Tested by Professional Soldiers


Relentless Knives,have found their way all over the world.
In many places the term relentless
is more than a brand name on a knife.
Websters  Dictionary defines the term
re-lent-less; Unmoved by love or pity: Unceasing, as without mercy.  A tough word, for tough people, needing tough equipment. 
Thanks to the men and women of the U.S. Armed Forces and others, for their relentless pursuit of protecting  freedom, and using
Relentless Knives to help them  along their way.

Available Knives. From time to time, we have knives available for immediate
Check Out the Available knives page .

ebay items  Click the Ebay icon to see what's for sale there.
The auction format is fun, and sometimes items can be won  at more than affordable prices.

              Web Site                           UPGRADE
                     By: Daniel M. Certo
Thanks for all your visits and
patronage. My Customers are the Greatest.
The Relentless Knives website is about to be upgraded.
There are just lots of areas that need worked on, and, Relentless knives,  have a traceable history which I will attempt to bring to the fore front for those who collect knives..
This work will be ongoing.....along with everything  else for the next few months. Please be patient and realize that when it's complete,  it will be easier to navigate, and have lots more easily accessible information.
So please don't let that stop you from visiting.......just realize that when you see the sign on the left we will be working .

Relentless Knives Catalog
On line catalog....New Models...etc
Special Editions
Dressed for Special Occasions
Reviews and Tests
Relentlessly  bringing You the best.
Support Our Troops
Military Award Program 3
Please Donate....!

Sheath Catalog

Medal of Excellence Awarded to
Relentless Knives by 10th Mtn Div. U.S. Army, Camp Liberty, Iraq 2006

The Relentless Knives  Enews is published on a monthly basis, and written by Daniel M. Certo.
Knife Tests and Reviews By: Maj. Ian Humphrey.
Other writings by various contributers..
All information is protected by U.S. Copyright, Trademark and Patent laws.

To subscribe press the contact dial below.
Thanks for reading the E news.


Coming soon 2008


                 M1 Interceptor

featured reviews  0907

          M1A      M1MAP     M1A.C.E

The 2007 MAP program continues.
We have raised  more than $1800.00 thus far not including gear and knives donated.
There are no administration costs ,and everything done here is for
the U.S.Troops, who more than deserve what little we have to give.
                                                                                                                                 click to join USN forums
This part of the MAP is complete

The drawing will happen on the Labor Day Holiday......MONDAY. SEPT 03, 2007
at ......approx. 9 P.M. EST



And to the Troops....Very Honorable mention to Keith Crowder.
This man has been "THE" biggest supporter of YOU.....

in this program, last year, and this......and that is just this tiny program.
He has hosted programs, and continually donated to Many, many Support Our Troops programs on the USN site, and God knows what other good he does.

This is rare and beautiful.

God Bless You Keith, and to those who have not realized it,

Mr. Crowder is a true patriot. We are firing shots in the cause of Freedom
.....he is dropping 500lb bombs.

 M2 Talon Awards.
I have pledged 12 M2 Talons at cost, to go to 12 deployed soldiers,
who wrote in and asked to be included, or were nominated by their fellow soldiers, or by their parents.

I have asked for help here in the cost of the raw materials and time. PLEASE DONATE....! Click on the Donate NOW BUTTON

Any soldier that asked was included, and I have one knife left to give.

Erik Stewart
Chaseing Hawk
Mark Ward                                                              
Dean C Bissey
Josh Murry
Phil Gilmore
Chris Massey
Charles Green
Jason David

Note: LT. Erik Stewart nominated three of his men....and we need their
first names.

NOTE: My only requirement here is that you send a photo of yourself at work as a deployed soldier, and a photo of you with the stuff when you get it.
This is so that me and your donors know that we are doing something here.
The first photo should reflect that you are armed and dangerous as we all hope you are....
The second photo, a smile if you are happy with the stuff, or, if not, a photo if it being destroyed. Preferably with a phosphorous grenade or other method that would make it interesting..

M2 Talon Project....To date.

NEEDED.......! $1139.47
donations to date:
$5.00 Carl Elzey Carl has also donated $20.00 to the M9K above
$100.00 Erik Stewart
$200.00 Keith Crowder Keith has also donated $200.00 to the M9k above
$20.00 Donald Oatley
$84.47 Scott Trzcinski
$200.00 Keith Crowder Keith has also donated $340.00 to the M9k above.
$20.00 Charles Green
Total donations $629.47

NEEDED.......! $710.47

                                              IF your already a USN member CLICK here                                   

20006 MAP program
and http://www.relentlessknives.com/support2.html

                                         Check out the MAP PAGE for more details on the program, and updates.
                                 THANKS TO EVERYONE WHO HAS HELPED SO FAR ... if you haven't.....Please help us to show your Support for our fighting men and women


                      WE are proud to Welcome SSGT Mark Ward  10th Mtn Div. U.S.Army as the newest
                        SSGT WARD                                         test and review specialist .
 His work will appear hear from time to time as he assists                          
  Major Ian Humphrey in testing and evaluating                       Major Humphrey                                        RELENTLESS  KNIVES.  
         SSGT WARD is an Infantry Combat Veteran with 3 Iraq tours and on his way this month to number 4. He is a Squad Leader, a knife collector and we are proud to have him on our team and in service to our country.

NOTE:The opinions expressed in these tests and reviews are those of the persons performing them,  and not the official opinion of the Department of the Army, Department of Defense, or United States Government.
   Question:So whats with the tests and reviews............are you trying to make knives for the   Army.....or what.....? Do you expect us to believe these tests are objective.....?

Well, Yes and No....... I would suppose making a knife for a soldier  could be considered making knives for the ARMY, but that's not what we are looking for here.
My goal is to produce some of the best extreme use knives on the planet.  A lofty goal to say the least.....but,  I like stuff that is built to the max in efficiency and durability. Since in the military, maximum efficiency and durability are not the exception but the rule... who better could put my work to the test than professional soldiers..
 Although this often looks like some type of info mercial....it's not.. lots of these tests and reviews  put the knives into the high adventure realm that they are intended for, and this newsletter is simply a window to watch through, as we struggle to find and correct the weaknesses in our work.  

You may never get to the High Snow Capped Mtns, White Water rivers
or Tropical wilderness that Major Humphrey explores, and  Desert  Combat missions  are maybe the last place you want to be,  well, that doesn't matter.....we are simply working to assure you that were ever your adventure might take you, that
you can rely on a RELENTLESS knife to be your faithful companion. To get the job at hand done, and to return to your base
in tact ....ready to do it again and again.  So please help myself and Ian Humphrey welcome SGT Ward to the crew.
He knows what it's like to be in the middle of things and have equipment failure...., your readership will help him to help us in our evaluation and improvement of Relentless Knives. You will be the beneficiary of out work.

                                             What about Rust and Stain in High Carbon steel knives   
                    CPM s30V High Performance Stainless Steel  is one answer........but
                                                      there are other alternatives
I purchased two of your high carbon steel custom knives about a year ago, and LOVE THEM!!! I just cannot keep the rust off of them, no matter how hard I try. Is there any way I can have you parkerize them for me? I just want to protect them with a more permanent solution.
Houston, Tx.    
    Hi: Yes I can parkerize your knives, it would cost $50.00 per knife with 4 week wait time.
Have you tried P.B. Blaster on them.                                                                                                   BLASTER STOPS RUST
It is sold in Auto parts stores, and works better than anything I have ever tried. It costs about $3.00 per can.
All High Carbon steel rusts, and Blaster penetrates the steel and reduces it quite a bit.
Parkerizing works better but costs more.
CPM s30V High Performance Stainless steel cuts longer is just as strong and doesn't rust.

Steel appears to be a solid material, but it actually has a surface full of microscopic pits and craters.
Water ,  combines with carbon dioxide in the air to form a weak carbonic acid that can easily penetrate the pores of the metal. This acid quickly acts to separate the iron from the other elements contained in the metal and change it to iron oxide(rust). Salt and other acids make the process happen more quickly.
Fingerprints contain  acids , salt. and moisture which cause rust. Blood, meat, vegetable matter , leather  all accelerate the formation of rust on uncoated or bare metal.

This process microscopically  happens almost instantly, and grows.
It can be easily stopped. with the application of oil  or other coatings that block out moisture and air.
Interestingly enough, a light surface rust , often known as stain, forms a natural barrier to air and a slight barrier against water, and will give the metal a  bit more protection against rust than bare metal. Bluing commonly found on firearms, is actually a controlled coating of what would quickly become rust in it's later stages.

So how do you stop rust.........................

Well, there are several different ways, all with trade off's

#1 P.B. Blaster.......commonly available in Auto Parts stores, this is a penetrating chemical, that enters the pours of the steel, and through a chemical reaction dissolves rust.
Careful maintenance with P.B. Blaster....that is keeping a Blaster soaked cloth handy at all times....and wiping the knife after use or handling works very well.  Knives wiped with Blaster will survive being submerged in water etc, so long as they are dried and Blastered afterward. In the field Blaster on steel wool will ignite with sparks from a metal match and makes great tinder for campfires too.

#2 Parkerizing.
Unlike other coatings...and much like Blaster,
but far more permanent ....Parkerizing is a process
which penetrates the pours of the steel, and deposits a rustproof metal coating
which bonds to the steel.
Parkerizing is a very effective rust inhibitor. You can apply it at home with careful attention to directions

I will apply it for you for approx $50.00
Parkerizing still requires the metal to be coated with oil.
Parkerizing will wear with hard and heavy use.
Parkerizing will not protect the naked edge of the knife.,
but is a truly effective rust inhibitor, and rust will not creep up under
the coated part of the blade.

Dura Coat / Powder Coat and other coatings.
These coating vary in durability....but all are coatings.
On a knife made from high carbon steel, there is a risk, due the the need
of the edge to be exposed for rust to work it's way under the coating,
resulting in an intact coating, and rusted and weakened steel underneath.
for this reason, I offer Dura coat on Stainless steel knives only.

 Below is an excerpt from an article by Major Humphrey on Rust.
The tests were very practical in nature,  and will give you an idea of what you might expect from High Carbon steel exposed to salt water etc.

 Rust Test
     I wanted to expand the rust tests to include the affects of salt water on the different steels.  This was a three part test that first included a simple area of the blade covered with plain water.  The second part of the test was a solution of Epsom salt and water on the blades, while the third part of the test consisted of a strong Kosher salt water solution on the knives. 
     The L6 model came in first during the basic water test with an easy to remove stain and no remaining marks.  The 5160 model finished second with an easily removed stain, but a small rust/dis colorization spot remaining.  For the Epsom Salt test, the 5160 model finished first with only a badly stained blade.  The L6 model not only had a badly stained blade, there appeared to be a thin layer of rust forming on the steel.  For the Kosher salt test, the L6 model came in first with easily removed surface rust and only a thick black stain remaining.  The 5160 blade also had easily removed surface rust, but with more staining than the L6 model.
     In comparison to the above steels, I tried the same three tests on the new s30v steel.  After all three tests, the s30v steel had no stains and no signs of rust on the steel.  Even after the Epsom salt and kosher salt left a sludge on the blade, they were easily removed and no damage appeared on the blade.

Next, a report from the Major on knives that were Bead blasted

For rust, the knives you sent all seemed to develop  spots from time to time...but no real rust yet...but I am very careful when it comes to post use cleaning and BP blasting.  I have never had any issues with the S30V...that stuff survived my sweat soaked water knife tests with no issues.  Some of my original Relentless neck knives with satin steel finish will spot, darken real easily...especially that one L6 model.  I know the spotting, staining is the pre-curser to rust...but with a little TLC and Blaster it seemed to do the trick.  As for leather sheaths...I never leave the knives in leather for an extended time...again for fear of staining the knives, so i have had no problems with them either.          

So.....The best thing to do if you are to busy to maintain your knife.....is buy a stainless steel knife.
But.....keep in mind that all stainless steel is not alike, and the addition of 
chromium  to steel in the amounts that  effectively fight rust, and at a hardness needed for good edge holding can increase the brittleness of the steel.
For this reason .....I highly recommend CPMs30V with the proper heat treatment and tempering.,
for a Super strong knife with excellent edge holding abilitys.....

NOTE: without the proper heat treatment and tempering , these great propertys are not brought into play and varied reports on s30V steel abound.
 Also note 
All stainless steel alloys can rust, they are only rust resistant, not rust proof. As with plain high carbon steels, proper blade maintenance is needed, though not as much."

      Finally, hard and heavy use also prevents rust, as the regular removal and replacement of the knife from the sheath, as well as the abrasion
caused by the the cutting task  gives rust little or no chance to form.
  Relentless Knives are made to preform,
take them out of the drawer....put them on your belt, then make them earn their keep
They won't have time to waste away, but will be by your side, like a faithful companion....ready to help you and make your day easier.                       

RELENTLESS KNIVES are 100% handmade by me in my shop.
Each knife receives large amounts personal of attention and care that is just not available in a factory made knife.

Options include hand forging which makes a strong knife ....Super strong.
Order YOUR Relentless Knife today........

 I am working on NEW models for the 2008 catalog. You will see prototypes and catalog variants in the next few months as I prepare NEW and improved models for the catalog. Some present models will be canceled, some will be improved, and of course some will stay as the reliable and popular models they have been for years.

Candidates for 2008 Catalog


Not in our 2007 Catalog, this is a new combination of designs, that affords the protection of a short sword and performance jungle machete. It was thought that M4 Extreme might be extended, with the integral guard of the M1i, (see my web site catalog)allowing the knife to be tethered to the hand. This feature allows extreme hacking, and brush hogging without the fear of the knife slipping out of the hand and being dangerously propelled. This is a great knife for high adventure back packing, and expeditions into uncharted territories where trails have to be blazed rather than followed. The knife is light weight for it's size, and Zone tempered for incredible strength.

Overall length is approx 15 3/4", Blade 10 1/2" (measured from rear of guard) X 3/16" x 2"


M9 Raptor

This model was introduced in 2007 catalog, and I've been refining the design

OAL approx. 10 " with Blade, measured from rear of the guard,

5 3/4" x 1/4" x 1 3/4"
It's a great medium sized knife with a blade under six inches.
The look on the right will most probably replace the two slightly different styles in the current catalog.

M1 Interceptor

OAL approx. 11 1/2 " with Blade, measured from rear of the guard, 7 " x 1/4" x 1 5/8"

This knife is a variation of the M1 Interceptor knife,available in my 2007 catalog. It has a NEW handle shape for this model.

                        Backpacker Prototype...rejected by the crew...!


watch this heading for more developments coming soon....!

            Relentless knives believes in the Protection and Defense of the Constitution of the United States of America  
     Enews Archives  : missed last months Enews....?  Find it here............CLICK here.
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Check Out the Available knives page for knives ready to ship.      
To Kill an American
You probably missed it in the rush of news last week, but there was actually a report that someone in Pakistan had published in a newspaper an offer of a reward to anyone who killed an American, any American.
So an Australian dentist wrote an editorial the following day to let everyone know what an American is so they would know when they found one. (Good one, mate!!!!)
 An American is English, or French, or Italian, Irish, German, Spanish, Polish, Russian or Greek. An American may also be Canadian, Mexican, African, Indian, Chinese, Japanese, Korean, Australian, Iranian, Asian, or Arab, or Pakistani or Afghan.
An American may also be a Comanche, Cherokee, Osage, Blackfoot, Navaho, Apache, Seminole or one of the many other tribes known as Native Americans.
An American is Christian, or he could be Jewish, or Buddhist, or Muslim. In fact, there are more Muslims in America than in Afghanistan . The only difference is that in America they are free to worship as each of them chooses.
An American is also free to believe in no religion. For that he will answer only to God, not to the government, or to armed thugs claiming to speak for the government and for God.
An American lives in the most prosperous land in the history of the world. The root of that prosperity can be found in the Declaration of Independence , which recognizes the God given right of each person to the pursuit of happiness.
An American is generous. Americans have helped out just about every other nation in the world in their time of need, never asking a thing in return.
When Afghanistan was over-run by the Soviet army 20 years ago, Americans came with arms and supplies to enable the people to win back their country! As of the morning of September 11, Americans had given more than any other nation to the poor in Afghanistan.
Americans welcome the best of everything...the best products, the best books, the best music, the best food, the best services.
But they also welcome the least.
The national symbol of America , The Statue of Liberty , welcomes your tired and your poor, the wretched refuse of your teeming shores, the homeless, tempest tossed. These in fact are the people who built America .
Some of them were working in the Twin Towers the morning of September 11, 2001 earning a better life for their families. It's been told that the World Trade Center victims were from at least 30 different countries, cultures, and first languages, including those that aided and abetted the terrorists.
So you can try to kill an American if you must. Hitler did. So did General Tojo, and Stalin, and Mao Tse-Tung, and other blood-thirsty tyrants in the world. But, in doing so you would just be killing yourself. Because Americans are not a particular people from a particular place. They are the embodiment of the human spirit of freedom                                                                           .