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Warthog Sharpeners

Warthog V-Sharp A4 Diamond Rod Knife Sharpener

  • 15, 20, 25 and 30 degree angle settings
  • Spring loaded hones sharpen both sides at once
  • 325 grit natural diamond hone plus hardened steel hone
  • Metal frame, rubber base, powder coat finish
  • 9 x 9 x 3 inches, 0.62 kg

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A sturdy bench sharpener that handles everything from machetes to fillet knives at four set angles. It is a V-style tool, not a polishing stone system.

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ASIN: B0BJVYMJ14Model: V-Sharp A4Category: Knife Sharpeners

Colors Available

Aqua SkyBlackBronzeGunmetal GreyRed

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Overview

Not a pull through gadget, the Warthog V-Sharp holds two spring loaded diamond rods in a V on a metal frame. Drawing a blade down through the V sharpens both sides at once at the chosen angle.

Four angle choices cover kitchen knives and heavy outdoor blades with one tool. It sharpens fast but does not polish to a mirror finish.

Who it's for

Suited to households, homesteads and hunting camps with many blade types. Collectors chasing refined edges should use whetstones.

Pros and cons

Pros
  • Four angle settings
  • Sharpens both sides at once
  • Diamond and steel hones
  • Metal frame with rubber base
Cons
  • No polishing stage
  • Single diamond grit
  • Large on the counter

Performance notes

Even edges come from the spring loaded rods, which press equally on both sides as the blade is drawn through. Diamond removes steel quickly, then the steel hone smooths the edge. Angle choice sets edge durability against keenness.

Specifications

BrandWarthog Sharpeners
ModelV-Sharp A4
Dimensions & fit
Item weight0.62 kg
Item Dimensions L x W x H9 x 9 x 3 inches
Construction & materials
ColorGunmetal Grey
Material TypeMetal frame, powder coated
Other details
Grit TypeCoarse, Fine
Abrasive type325 grit natural diamond hone, hardened hone steel
BaseRubber
Sharpening angles15, 20, 25 and 30 degrees

Frequently asked questions

What comes with the Warthog V-Sharp A4?

The sharpener with a 325 grit natural diamond hone and a hardened hone steel for finishing.

Can the Warthog A4 sharpen a machete?

Yes. Warthog lists machetes, hunting and bushcraft knives along with fillet, sushi and kitchen knives.

Does the Warthog A4 sharpen both sides at once?

Yes. The spring loaded hones sharpen both sides simultaneously.