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 3 mm 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 14 mm, 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.