Warranty and Sharpening

A group of knives that are on the ground.



Myerchin Warranty

A note about Myerchin, Inc. policy on privacy: We do not share our customer information with any other entity. All customer information is kept confidential.

Your Myerchin Rigging Knife

Your Myerchin knife is a precision tool.  Like all precision tools, the manufacturing tolerances are very close; hence the clean open and snap (walk and talk) when the components are opened and locked.  We continuously utilize our almost half a century of marine experience in the manufacturing process constantly updating our techniques and materials as warranted by advances in the field. We make your knife to function as well as possible in a harsh marine environment.  It is imperative that the owner respects the integrity of the tool and treats it accordingly.  After use near salt water, rinse the entire knife in fresh water and apply a few drops of oil to the two hinge pins. Make sure the mechanism is reasonably free of dirt and debris.  While it is possible to manufacture a “rust proof” knife... the resulting product performs very poorly.   The Pro-grade German Marine stainless that we use is comparable to 440C for hardness and edge-holding properties with additional anti-oxidation elements added for the final crafting of our knives.  

Our “Limited Lifetime Warranty” is as follows:

If your Myerchin knife fails during reasonable use due to a manufacturing error or unseen defect, return it to us immediately for replacement or repair.  Of course this does not apply if the knife has been abused or used in an improper manner.  Note that a well-used, well-cared for knife is always covered for the lifetime of the original owner.  Myerchin will make the final decision on whether a knife has been abused or not.

  1. The Warranty applies only to the original purchaser of the knife.
  2. When returning the knife to Myerchin, Inc. Include a legible copy of the purchase receipt.
  3. Include $6.00 for shipping and handling.
  4. Return to:   Myerchin, Inc., 40621 Chantemar Way, Temecula, CA 92591

Examples of what  IS  covered by this warranty:

  • A knife where the back spring has fatigued and the blade/spike no longer lock.
  • A defect in the metal casting resulting in a weak spot.
  • A new knife with obvious manufacturing defects, e.g., cracked micarta, wood, etc.

Examples of what  IS NOT  covered by this warranty:

      •  An abused knife where the blade or  spike has been used as a pry bar.

  • An abused knife that has been left in a bilge or rusty tool box and is frozen with dirt and oxidation.  Obvious neglect.

What can you do if you have neglected your knife and the mechanism is frozen?

We suggest that you spray the knife liberally with WD-40 (or similar) in a zip lock bag and leave it for a week or so.  Usually this will allow the oil to penetrate the mechanism so you can open the knife and carefully clean it.  Most rust is surface (cosmetic) and simply needs to be loosened and cleaned.

A blue and white logo for myerchin tested at sea.


 Sharpening the Standard Blade 

Sharpening the Traditional Style Blade.

For the novice, we strongly recommend the pre-set “V” style sharpeners.  These are sold in many department and sporting good stores.  We carry one of the best "V" sharpeners in our web store.  The beauty of this sharpener’s design is that the angle is pre-set for the novice.  Obviously, if you are well-versed in the use of the classic whetstone... use the whetstone.

When using the “V” style sharpener, be certain to hold the blade straight up and down (perpendicular to the sharpening base).  Carefully draw the blade over the rods... alternating from one side of the blade to the other.  (See the manufacturer’s instructions and watch the short film  for additional information. 


For the novice, we recommend that they take their knife to a place that does professional sharpening.  For periodic “touch-ups” to the blade, we recommend the following:

Using one of the rods from a “V” style sharpener (or a tapered fine file for a chainsaw) proceed as follows:  

  1. Inspect the serrations.  One side is beveled... the other is flat.  You will be working with the beveled side.  Using the rod (or fine file) and following the angle of the bevel, lightly file each big serrated loop.  Use a gentle motion and keep the rod (or file) at the same angle as the bevel.  
  2. After addressing each large loop several times turn the blade over and,using the rod (or file),  gently wipe the flat side of blade.  This is to remove any curl you may have caused in step one. The tip, or non-serrated portion of the blade is sharpened just like a standard blade. That’s it... your Myerchin® Serrated Knife should be fine for a good long time.



Things you should  “never”  do to your blade:

  1. Never grind the blade... never improperly “file” the blade. A file is only used with a serrated blade... and then, very lightly.  (See the above video).  If the blade has really become “dull”, take it to a professional sharpener.
  2. Never use the blade or spike as a pry bar.  they are  finely tapered and not intended to be used as a prying  tool.
  3. Never allow a knife to be “put away” that has been used in salt water.  After use in salt water...ALWAYS rinse the blade (knife/spike) in fresh water and apply a fine oil  (like WD-40).  Knives stored in a rusty tool box will accumulate “cosmetic” or surface rust.  This is easily cleaned with stainless cleaners on exposed surfaces such as the blade or spike.  However, when rust has been allowed to form on the hinges and spring... it is best to soak the entire knife in WD-40 and place it in a sealed plastic bag for several days.  After this time has passed... work the knife and spike carefully until they are free.  
  4. REMEMBER... it is possible to manufacture a “rust free” knife, i.e., “diving knives”;  however, “rust free” knives are notorious for notholding an edge.  The finest stainless steel knives must have some carbon in order to hold an edge (such as 440C).  Myerchin® Rigging Knives have always utilized the the highest quality stainless steel. The Pro-grade German Marine stainless that we use is comparable to 440C for hardness and edge-holding properties with additional anti-oxidation elements added for the final crafting of our knives. They hold an excellent edge... and they are definitely “rust resistant” if cared for properly.  They should easily last a lifetime... or longer.
  5. Check out our Sharpener in the Web Store (Model V100)  


A blue whale is shown on the side of a metal fence.