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Redi-Edge US NAVY Challenge Coin Knife Sharpener
Redi-Edge US NAVY Challenge Coin Knife Sharpener

Redi-Edge US NAVY Challenge Coin Knife Sharpener

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The Redi-Edge® Challenge Coin Knife Sharpener, is unmatched in its design and effectiveness. The convenient “challenge coin” design enhances the portability of the sharpener. The US Navy version of the Redi-Edge® Challenge Coin is engraved with the NAVY logo on the front and the US Navy Seal on the back.

The Redi-Edge® Challenge Coin’s Duromite™ inserts are harder than any knife blade; and factory set at a 40° inclusive angle, maintaining consistent 20° double edge on your knives. Produced from military-grade aluminum for extreme durability, long life, and lightweight.

  • Lifetime Warranty
  • Made in the USA.


Klawhorn Industries, Inc., manufacturer of the Redi-Edge® Challenge Coin, is an official trademark licensee of the United States Navy.