Venev Unicorn³ Series Dual-Sided Resin-Bonded CBN Stones are designed for use in sharpening systems such as Hapstone and TSProf, as well as for freehand sharpening. CBN (Cubic Boron Nitride) is the second-hardest material after diamond, offering exceptional wear resistance and thermal stability. CBN sharpening stones provide excellent performance when working with high-alloy, powder, and hardened steels.
The Unicorn³ Series represents Venev’s premium-tier dual-sided stones, featuring 3mm CBN-bearing layers bonded to a CNC-milled aircraft-grade aluminum alloy plate. The CBN-bearing layers contain evenly distributed CBN grains within a resin bond. The abrasive layer thickness in the Unicorn³ Series is twice that of the Centaur Series.
Grits F80–F240 utilize a wear-resistant boron-modified phenolic resin composite binder (legacy binder). Grits F400–F1200 use a proprietary non-abrasive phenolic resin composite binder (OSB binder), providing scratch-free sharpening results.
All Venev CBN stones use FEPA-F grit classification.
⚠️ Attention: Due to the increased thickness of 14mm, Unicorn and Unicorn³ Series stones are not compatible with any stone cases currently offered. The only suitable storage option for the Unicorn Series is the Roll Bag for 6 stones.
Metallic Binders (MMC)
M2-01 - Copper-tin bronze alloy.
MS-1 - Metal-matrix composite (MMC) - Copper-tin bronze alloy reinforced with silicon carbide.
MB-1 - Metal-matrix composite (MMC) - Copper-tin bronze alloy reinforced with boron carbide.
MS-1A - Metal-matrix composite (MMC) - Aluminum-copper alloy reinforced with silicon carbide.
Resin Binders
B1-10 - Boron-modified phenolic resin (BPF) composite - Made of powdered bakelite, copper additive
B2-01 - Boron-modified phenolic resin (BPF) composite - Made of liquid bakelite, iron additive (softer than В1-10)
В2-01М - Boron-modified phenolic resin (BPF) composite - Made of liquid bakelite, copper additive (softer than В2-01)
OSB (OCB) – A proprietary phenolic resin composite.
(OSB and OCB refer to the same binder; the difference arises from a transliteration quirk of the Cyrillic “ОСБ,” which can be rendered as either “OSB” or “OCB” in Latin script.)
Code | Diamond Series | CBN Series | Dimensions | Bond | Class |
---|---|---|---|---|---|
CBR | Cerberus | 100×17×10×2×2 | Resin | Dual‑sided Premium | |
UMI | Ursa | 150×16×10×1×1 | Resin | Dual‑sided Standard | |
CEN | Centaur | Centaur³ | 150×25×10×1×1 | Resin | Dual‑sided Standard |
MON | Unicorn🚀 | Unicorn³🚀 | 150×25×14×3×3 | Resin | Dual‑sided Premium |
CMA | Greater Dog | 98×40×10×1×1 | Resin | Dual‑sided Standard | |
PHE | Phoenix | 200×83×10×1×1 | Resin | Dual‑sided Standard | |
DRA | Dragon | 200×83×12×2×2 | Resin | Dual‑sided Premium | |
CHA | Chameleon🚀 | Chameleon³🚀 | 150×25×6×3×3 | Metallic | Dual‑sided Solid |
SCO | Scorpion | 100×25×8×2 | Resin | Single‑sided Mounted | |
ORI | Orion | Orion³ | 150×25×6×3 | Resin | Single‑sided Mounted |
SGR | Archer 𝘎𝘦𝘯𝟤⌛ | Archer³ | 150×25×3 | Metallic | Single‑sided Variative |
GEM | Gemini 𝘎𝘦𝘯𝟤🚀 | 150×12×3 R40 | Metallic | Single‑sided Mounted | |
SCL | Sculptor⌛ | 150×12×3 | Metallic | Single‑sided Mounted |
Resin Dual Premium Resin Dual Standard Resin Single Mounted 🚀 Released ⌛ Soon
Dimensions notation.
Monolayer solid abrasives have 3 numbers: length × width × thickness.
Single-sided abrasives with backing have 4 numbers: length × width × full thickness × thickness of abrasive.
Dual-sided abrasives have 5 numbers: length × width × full thickness × thickness of abrasive #1 × thickness of abrasive #2 (both sides)
If thickness is variable, the minimum thickness is noted.
For curved abrasives, a radius of curvature inmm is added: R40.