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MERCATOR K55K Cat Military Folding Knife

Price: $37.99

  • Model: 10-426rg
  • Weight:110.08g
  • Availability:In Stock
  • Brand:MERCATOR

Mercator K55K is a type of pocketknife produced in Germany since around 1867.  Mercator knives were primarily produced by Hy. Kauffmann traced back to mid of 19 century. The Mercator K55K knife is still produced in Germany by Mercator, now a division of Otter-Messer.  With over 140 years of existence, this legend is surprising even today of modernism

Mercator K55K is of very simple construction. The handle consists of a folded piece of sheet metal, painted black, engraved with the outline of a leaping cat and the legend "K55K", with the second "K" being backwards. The blade has a nail-nick by which it may be grasped to pull it open, and it locks in the open position (a lockback knife), after which it may only be closed by depressing a lever at the back of the knife.

This knife gained popularity in the United States following World War II, as returning servicemen brought Mercator knives home from Germany as "spoils of war".  Some believe that Mercator K55K was issued to German army, no evidence though.  However, it is probable that many German soldiers privately purchased this knife for their personal uses.

- Genuine folding knife made in Solingen, Germany since 1867;
- Unique design with a pump closure;
- 6mm thickness, lightweight enough put in pocket;
- Sturdy carbon steel handle that lasts;
- Solid constructed, forged XC 75 hardness 57 HRC
- Made in Germany

Opened Length:  20 cms
Closed length:    11 cms
Blade length :     9 cms
Handle width:     6 mm
Blade width :      3 mm
Blade:                Carbon Steel blade


About Mercator
"Mercator" means "trader" in Latin. "Trader" being the english meaning of the German name of his designer, Mr Kaufmann.  The first K is for Heinrich Kaufmann, the founder of the company. The number of the street Hochstrasse, the address of the parent company of the company Kaufmann and Söhne was 55.  The 2nd K is the initial of "Katze " (cat), stylized animal which we find on a side of the handle.  This cat and the black color of the handle make it nickname "Black cat" or " Jumping cat " by the Americans.




This item is strictly sold for purpose of hunting/collection etc that it is not intended to be used as a weapon.  It is buyer's sole responsibilities to ensure compliance with local laws/regulations in their jurisdiction.   All buyers warrant that they are over the age of 18 and are legally entitled to buy and possess this item in their jurisdiction.


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If you are not comfortable with shopping online, simply drop an e-mail with the item name, quantity that you are after and physical delivery address. We will get back to you within 24 hours.

Please note that order has already been shipped out cannot be revised or cancelled.

All prices are shown in Australian Dollars; do not accept other currency.

Generally, Fusion Gear accepts the following forms of payment.

    -    Paypal
    -    Bank Transfers/Direct Deposit
    -    Credit Card (visa/mastercard/debit card) * do NOT accept credit card from international customers.

Generally, all orders will be shipped on the same working day upon receipt of cleared payment by received before 2pm ACST. Whilst all orders are processed and shipped as quickly as possible; Fusion Gear is not liable for any consequential losses caused by late delivery.

Estimated arrival dates are a general guideline, not guaranteed, which is subject to a range of factors, including mailing address, availability of the item(s) ordered, payment & shipping method, weather and/or other unforeseen circumstances.

Buyer who places an order with incorrect information is liable for all aspects of shipping costs and will only be refunded the value of the goods only NOT the subsequent carriage costs. Should redelivery be required, postage is ought to be collected prior to shipment.

To international buyers, Fusion Gear is able to provide the shipping date and customs declaration reference number; provides no tracking information as international parcels cannot be tracked after leaving Australia (except Express Courier). It is highly recommended that international buyer get themselves familiar with the local importation requirements and restrictions, who is solely responsible for payment of applicable duties, taxes and other fees if applicable. Fusion Gear does not assume liability for fees/taxes/expenses incurred during the importation of products and does not refund for packages seized by customs or unclaimed at customs.

Because of the large volume of products shipped each day, it is impossible for Fusion Gear to check each and every individual item prior to shipping. As such, every item is assumed to have left the factory in function, undamaged condition. Should an item is damaged, defective, or need warranty repair, the Buyer is obliged to notify FUSION GEAR of the intended replacement at first place and return within 10 days as of the invoice date, ensure all items returned appropriately packed.

The item(s) in return shall be in: BRAND NEW, UNUSED, UNCARRIED, UNDAMAGED CONDITION WITH ORIGINAL PACK with all materials, instructions, paperwork and proof of purchase, there are certain items may not accept return, for instance hydration equipment and factory second etc though. Buyer bears any cost relating to return/replacement.

Fusion Gear will send the replacement or refund to the Buyer whichever the case applies within 2 working days upon receipt of the faulty goods returned in good order that are not exhibited damage or non-functional as a result of improper use or treatment or modification beyond specification.

Fusion Gear does not accept returns for no reason simply as an example "changed my mind". Australian Consumer Law (ACL) provides the Buyer with statutory rights and consumer guarantees. The Return Policy is in addition to your rights and remedies you may have under the ACL.

For more details on return/warranty, simply go to Return Policy; or drop us an e-mail info(at)

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