Professional Knife Sharpener

Professional Knife Sharpener: Diamond precision for your blades

Maintaining a sharp edge is essential for kitchen performance. A Japanese knife, however prestigious, loses its efficiency without regular edge care. Our professional knife sharpener has been rigorously selected to provide a precise and safe alternative to the traditional whetstone.

Designed for demanding chefs and enthusiasts, as well as high-carbon steels (10CR15CoMoV), this sharpener ensures a constant 15° angle. It is a technical solution for anyone seeking the precision of a stone without the learning curve of manual techniques.

Unlike European knives sharpened at 20° or 22°, Japanese blades (Santoku, Nakiri, Kiritsuke) feature a finer geometry, typically between 12° and 18°. This sharpener incorporates predefined angles (15°, 18°, 20°, 22°) to suit your entire collection. Selecting the 15° angle restores the original surgical sharpness of your 10CR15CoMoV steel without altering the blade's profile.

One of the main challenges of manual sharpening is maintaining a consistent angle. Our system solves this with a magnetic base with non-slip coating. The knife stays firmly attached to the support while the sharpening roller, equipped with a ball-bearing system, ensures smooth and steady movement.

Using diamond discs allows you to sharpen all types of steel, including the hardest varieties (HRC 60+). The sharpener offers essential working stages:

1. 300-grit side (coarse grit): Essential for restoring a blunt blade, removing micro-cracks or repairing a damaged edge.

   600-grit side (medium grit): For finishing the sharpening process, refining the edge and restoring its everyday "bite".

Crafted from 430 stainless steel and high-density polypropylene, this 17.7 cm tool is built for intensive use. Its integrated storage feature protects the sharpening surfaces between uses, ensuring greater longevity for your equipment.

1. Set-up: Place the magnetic base on a flat surface. Secure your knife at the desired sharpening angle (15° for our Japanese knives).

   Sharpening: Roll the cylinder back and forth evenly along the blade edge, starting with the 300-grit diamond surface.

   Finishing: Turn the disc over and use the 600-grit side to polish the edge. Then reverse the knife to work on the other bevel (symmetrical sharpening).

To extend the life of your tools, we recommend a quick pass on the sharpener as soon as you feel the blade slipping on a tomato skin. For a mirror finish, you can complete the process with a pass over a leather strop or an 8000-grit whetstone.

• Materials: 430 stainless steel, polypropylene, industrial diamond.

  Angles included: 15°, 18°, 20°.

  Grits: 300 (repair) / 600 (sharpening).

  Dimensions: 17.7 cm x 5.5 cm.

  Compatibility: Japanese and European knives (carbon and stainless steel).

  Care: Clean with a dry cloth after use. Not dishwasher-safe.

To maintain your blades, several solutions exist, each meeting a specific need for precision or speed:

• Traditional whetstone: The purist’s benchmark method. It offers complete control over material removal but takes considerable practice to maintain a consistent angle by hand. Our professional sharpener draws on this method, using diamond while keeping the sharpening angle steady.

  Honing steel: Often mistaken for a sharpening tool, a honing steel is mainly used to "realign" the blade edge between uses. It remains essential for realigning your blades’ edges daily without removing material. When the edge does become truly blunt, however, the diamond sharpener takes over, removing a thin layer of steel to restore the sharpening angle.

  Manual or electric sharpener: Standard pull-through models often use carbide inserts, which can be harsh and "tear away" steel. Our ball-bearing system favours gentle, controlled abrasion, preserving the structure of your 10CR15CoMoV steel.

  Sharpener with a suitable disc: This system shares our model’s magnetic rolling principle. Our solution stands out for its range of angles (15° to 22°) and industrial-grade diamond surface, ensuring optimal compatibility with all Kaitsuko ranges.

Sharpening is a technical skill that improves with practice. Here are our recommendations for professional results at home:

• Preparing the surfaces: If you use additional finishing stones, make sure to keep the stone constantly wet. Always have a container of water close at hand: water acts as a lubricant and helps carry away the "sharpening slurry" (a mixture of stone and steel particles) needed for polishing.

  Getting the technique right: As you move along the blade, a slight tilt of the handle is needed to follow the curve of the tip. It takes a little practice, but the magnetic base of our sharpener makes this step much easier by stabilising the knife.

  Frequency and checking: We recommend sharpening regularly according to how often you use your knife. Do not wait until the blade is completely blunt.

  The final test: To check your work, perform the paper-cutting test: the blade should glide through the sheet without resistance or snagging. If the paper tears, make another pass with the finishing grit (600).

This magnetic sharpening system is the most practical solution for maintaining a diverse collection. While a whetstone requires years of practice, this tool delivers a "razor-sharp" edge in just a few minutes. We recommend it to sustainably protect your investment in high-performance blades.

Get your blades sharper today.