Smith & Wesson Knife Sharpener with Fine, Coarse Sides, Screwdriver, Heavy Duty Construction and Keychain for Survival… Price: $13.99 (as of 10/08/2022 14:07 PST- Details)

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VERSATILITY: Features both a coarse carbide and fine ceramic side to allow for yearly sharpening or routine honing as well as a retractable, tapered diamond honing stone for working on serrated blades