Various Sharpening Angles: The Warthog V-Sharp sharpeners usually offer multiple sharpening angles to choose from, to cover different knife types and applications. Many other systems only have one fixed sharpening angle.

Replaceable Sharpening Units: The sharpening units of the Warthog V-Sharp sharpeners can be replaced to use different grits for different sharpening stages. This is not possible with many other systems.

Diamond Sharpening Rods: While some sharpening systems use ceramic or water stones, the Warthog V-Sharp sharpeners rely on high-quality diamond sharpening rods. These are particularly durable and enable fast and effective sharpening, even with heavily worn blades.

Guide Aids: The Warthog V-Sharp sharpeners often have guide aids that make it easier to position the blade correctly. This is especially helpful for beginners.

30 degrees (A4, A4 ELITE, CLASSIC II, CLASSIC II ELITE, XTREME EDGE):
The angle for rough work - Intended use: Work knives, cleavers, and knives used for cutting cardboard, cables, wood, ropes, or opening cans.

25 degrees (A4, A4 ELITE, CLASSIC II, CLASSIC II ELITE, XTREME EDGE):
Sharper cutting edge - Intended use: Butcher knives, kitchen knives, skinning knives, pocket knives, hunting knives.

20 degrees (A4, A4 ELITE, CLASSIC II, CLASSIC II ELITE, XTREME EDGE):
Sharp but fine cutting edge - Not suitable for hard cutting boards, especially for fillet knives, razors, paring knives, and fine cutting.

17 degrees (XTREME EDGE):
A sharp blade, even on the go - Perfect for fillet knives, Japanese knives, and all blades that come into contact with softer materials.

15 degrees (A4, A4 ELITE):
For an even finer blade - Perfect for fillet knives, Japanese knives, and all blades that come into contact with softer materials.

The sharpening angle can only be adjusted on the V-Sharp A4, A4 ELITE, CLASSIC II, CLASSIC II ELITE, and XTREME EDGE. The V-Sharp CURVE has a fixed sharpening angle of 25 degrees.

Diamond particles are extremely hard and sharpen steel blades very quickly. This allows you to sharpen your knives in no time. Diamond is the hardest known material, so diamond-coated sharpening stones are extremely durable and do not wear out as quickly as other sharpening stones.

Unlike other sharpening systems, the knife blade points away from you during the entire sharpening process. You hold the sharpener with one hand and pull the blade over the sharpening rods with the other. The blade guide provides additional protection and prevents you from accidentally holding the blade at an angle.

The hardness of a blade is usually measured using the Rockwell hardness test. A diamond cone or carbide ball is pressed into the blade with a defined force. The penetration depth is measured and converted into a hardness value, which is usually given on the Rockwell C scale (HRC). The higher the HRC value, the harder the cutting edge.

• 50-52 HRC: Cheap knives that dull quickly and bend easily.
• 53-55 HRC: Soft knives that are flexible but need to be sharpened frequently.
• 55-57 HRC: Typical hardness for European kitchen knives, a good compromise between edge retention and flexibility.
• 58-60 HRC: Hard knives, very good edge retention, but also more brittle and prone to chipping. Popular for Japanese kitchen knives.
• 61-65 HRC: Very hard knives, extremely good edge retention, but also very brittle. More suitable for special applications.

Since the sharpening units of the V-Sharp knife sharpeners are made of diamond, any blade can be sharpened regardless of the HRC value.

Every knife sharpener (except the Curve or Multi Edge) is already supplied with sharpening rods inserted at a 25° angle. The blade guide ensures that you always pull your knife straight through the sharpener, thus sharpening the blade on both sides.
Unpack. Get started. It couldn't be easier.

For serrated blades, which are often used on bread knives, for example, we offer ceramic sharpening units. Unlike diamond rods, these are rounded and thus adapt to the individual waves of the blade. The two rods perform two operations in one. The serrated side sharpens the serrations and the other side straightens the burr. This way you have a sharpened knife faster.

Due to the V-shaped arrangement of the sharpening rods, only the cutting edge is in contact with the rods at any time. Since the blade is pulled from top to bottom through the sharpener, the size of the blade does not matter.

The duration of the sharpening process depends on several factors:

• How dull is the blade at the beginning?
  The duller the blade, the longer it takes for the blade to become sharp again.
• Which grit is used for sharpening?
  The coarser the grit, the more material is removed from the blade. So you always work your way from coarse to fine. The finer the grit, the sharper the edge will be in the end.
• How hard is the blade?
  The harder the steel, the less material is removed during sharpening.

We only give a rough guideline on how to proceed.
You can check the sharpness with the "thumbnail test". If you place the blade on your thumbnail after sharpening, it should not move. If it still slides back and forth, the cutting edge needs to be sharpened further.

The paper test
Take a sheet of paper and hold it firmly. Place the knife blade at an angle at the top and pull it down with little pressure. If the knife gets stuck and tears the paper, it is not sharp enough. But if the blade cuts cleanly through without shredding the paper, then you have a really sharp knife!

You can also sharpen ceramic blades with the V-Sharp knife sharpeners.

A few tips:

• With ceramic blades, the correct angle is very important. 15° or 20° are ideal for sharpening the knife well.
• Ceramic is very hard and is classified in the HRC scale between 60 and 67.
  Therefore, for a dull ceramic knife you should use the 325 grit sharpening units. For sharpening the cutting edge, the sharpening units with 1000 grit are ideal.

For on the go, especially in the outdoor and camping area, we recommend the V-Sharp Curve or the V-Sharp Xtreme Edge.

The V-Sharp Curve is ideal for backpacks due to its compact design and is suitable for quick sharpening of your outdoor knives.

The V-Sharp Xtreme Edge combines all the advantages of the V-Sharp A4 and is made of weatherproof ABS plastic.

Another advantage compared to other sharpening systems is that you don't need any flat surface to sharpen your blades outdoors.

No, that's not a problem.
All models except the Curve have an adjustable blade guide, which can be steplessly adjusted to the blade thickness. This can be easily adjusted via a rotary knob.