Product map

When it comes to achieving a hair-splitting edge on high-end cutlery and industrial tools, selecting the right sharpening stones is critical. Whether you are working with super-hard powder steels or traditional carbon blades, understanding the synergy between abrasive types , bond systems , and stone dimensions will elevate your sharpening game. Diamond vs. CBN: Choosing the Right Abrasive The first step in building your sharpening kit is choosing the abrasive material based on the steel you intend to sharpen.

• Diamond Sharpening Stones: Known as the hardest material on Earth, monocrystalline diamonds are the industry standard for rapid metal removal. They are best for repairing chipped edges and sharpening carbide-rich steels, ceramics, and extremely hard alloys.
• CBN (Cubic Boron Nitride) Stones: While slightly less hard than diamond, CBN offers superior thermal stability and chemical inertness. This makes CBN stones the preferred choice for high-speed steels (HSS) and modern "super-steels" (above 60 HRC), as they provide a smoother finish with less risk of micro-chipping the apex.

Understanding Bond Types for Longevity and Finish The "bond" is the matrix that holds the abrasive grains together. It dictates how the stone "feels" and how long it lasts. 

1. Metal/Bronze Bond: The most durable option. These stones feature a thick layer of abrasive infused in a copper-tin matrix. They are highly wear-resistant and maintain flatness for a long time, making them ideal for heavy-duty stock removal.
2. Resin Bond: These stones offer a softer, more "cushioned" feel. Resin-bonded diamond stones are perfect for finishing and polishing, as the bond allows the abrasive to act more delicately, resulting in a cleaner, mirror-like edge.
3. Combined Bond: combination of hybrid (metal-resin) bonds depending on grit site: softer bond for fine grits and harder bonds for coarser grit sizes. Innovative and recommended solution for most applications. 

Dimensions for Manual and System Sharpening Choosing the right size ensures stability and efficiency during the sharpening process.

• Guided Sharpening Systems: For systems like Kazak, Hapstone, Edge Pro, etc., the standard dimension is 6" x 1" (150 x 25 mm) . We also offer narrow 12mm wide stones for recurve blades and complex geometries.
• Bench Stones for Manual Sharpening: If you prefer hand-sharpening, larger surfaces like 8" x 3" (200 x 75 mm) provide the necessary travel for long kitchen knives and woodworking chisels.

Why Upgrade Your Sharpening Setup? Investing in high-quality Diamond and CBN stones ensures consistency. Unlike natural stones or cheap aluminum oxide, these advanced abrasives do not require constant flattening, stay cool during use, and can cut through any modern steel on the market today. 

Dimensions of sharpening stones, length x width, mm  

CBN			Diamond
Metal bond	Resin bond	Combined bond	Metal bond	Resin bond	Combined bond
			100 x 5
			100 x 6
100 x 8			100 x 8
			125 x 4
			125 x 5
			125 x 6
125 x 8
125 x 12			125 x 12
			150 x 6
150 x 12		150 x 12	150 x 12
150 x 25	150 x 25	150 x 25	150 x 25	150 x 25	150 x 25
		150 x 35
150 x 50		150 x 50
		200 x 30
200 x 40			200 x 40
200 x 70			200 x 70

mm to inch:
100 mm = 3.9
125 mm = 4.9
150 mm = 5.9
200 mm = 7.9
4 mm = 0.16
5 mm = 0.2
6 mm = 0.2
8 mm = 0.3
12 mm = 0.5
25 mm = 1
35 mm = 1.4
40 mm = 1.6
50 mm = 2