The Bench Stone 3x8 CBN 306CBN is a premium Cubic Boron Nitride (CBN) sharpening stone designed for professional knife makers, serious hobbyists, and anyone who needs fast, efficient sharpening on high-hardness steels. Measuring 3 inches by 8 inches, this bench stone delivers exceptional cutting performance thanks to its CBN abrasive surface, which is second only to diamond in hardness. Whether you’re sharpening high-end kitchen knives, hunting blades, woodworking tools, or custom knives made from tough steels like CPM-S35VN, M390, or 20CV, the 306CBN provides rapid material removal while maintaining a flat, consistent sharpening surface.
Why Choose the Bench Stone 3x8 CBN 306CBN?
Cubic Boron Nitride (CBN) has become the preferred abrasive for sharpening modern super steels because it cuts much faster than traditional aluminum oxide or silicon carbide stones while generating far less heat. The 306CBN model offers a generous 3" x 8" working surface, giving users plenty of room to sharpen both small pocket knives and larger chef or hunting knives with ease. Unlike water stones that require constant flattening and soaking, CBN stones maintain their flatness over time and can be used dry or with a light oil. This makes the Bench Stone 3x8 CBN an excellent choice for professionals who value speed, consistency, and low maintenance. Whether you’re a knife maker looking to establish bevels quickly or a serious user who wants to maintain a keen edge on hard steels, this stone delivers professional-grade results with minimal effort.
Key Features of the Bench Stone 3x8 CBN 306CBN
- Cubic Boron Nitride (CBN) Abrasive – Extremely hard abrasive that cuts high-hardness steels quickly and efficiently
- 3" x 8" Bench Stone Size – Large working surface ideal for full-size knives and tools
- Fast Cutting Action – Removes material much faster than conventional sharpening stones
- Low Heat Generation – Reduces the risk of overheating and damaging blade temper
- Flat and Consistent Surface – Maintains flatness over time with minimal maintenance
- Versatile Use – Can be used dry or with light honing oil
- Durable Construction – Long-lasting abrasive that resists wear even with heavy use
- Professional Grade – Trusted by knife makers and serious sharpeners
Performance and Handling
The Bench Stone 3x8 CBN 306CBN excels at sharpening modern high-performance knife steels that are difficult to sharpen on traditional stones. Because CBN is nearly as hard as diamond, it cuts through carbides in steels like S35VN, Elmax, and Vanax with ease, dramatically reducing sharpening time. The large 3" x 8" surface allows for comfortable sharpening strokes and helps maintain consistent angles across the entire blade.
Unlike water stones that dish out quickly and require frequent flattening, the CBN surface stays remarkably flat, ensuring consistent results over many sharpening sessions. The stone can be used dry for quick touch-ups or with a light oil for more aggressive material removal and better swarf management. Its performance makes it especially valuable for knife makers who need to establish primary bevels quickly and for users who regularly sharpen very hard or wear-resistant steels. The combination of speed, flatness, and durability makes the Bench Stone 3x8 CBN one of the most efficient sharpening solutions available for serious users.
Technical Specifications
| Product Name | Bench Stone 3x8 CBN |
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| Model Number | 306CBN |
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| Dimensions | 3" x 8" |
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| Abrasive Type | Cubic Boron Nitride (CBN) |
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| Recommended Use | High-hardness knife steels, woodworking tools |
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| Usage | Dry or with light honing oil |
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| Maintenance | Minimal – stays flat with normal use |
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| UPC | 716104640454 |
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| Best For | Knife makers, professional sharpeners, serious hobbyists |
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| Key Benefit | Fast-cutting 3x8 CBN bench stone for hard steels |
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Experience fast, efficient sharpening on the toughest modern steels.
Bench Stone 3x8 CBN 306CBN – Built for performance and durability.
The Bench Stone 3x8 CBN 306CBN is a Cubic Boron Nitride sharpening stone measuring 3 inches by 8 inches. The model number 306CBN and UPC 716104640454 identify this specific configuration. Always follow proper safety guidelines when using sharpening stones and tools.
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