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CBN stone on organic BN-130 binder for controlled sharpening, edge refinement, and smooth finishing on Hapstone systems.
Abrasive
CBN works softer than diamond and helps reduce deep scratches while maintaining efficient sharpening performance.
Binder
The organic phenol-formaldehyde BN-130 binder gives the stone a controlled feel and supports clean edge refinement.
Ready
Expert series stones are finished to uniform thickness, chamfered, and ready for work without additional preparation.
Diamond vs. CBN
Compared with diamond, CBN has an octahedral crystal structure with more cutting edges and less sharp angles.
This gives CBN a smoother sharpening feel and helps produce a cleaner scratch pattern during refinement and polishing.
Grain size in JIS may slightly differ between PDT batches, while the micron size remains the exact reference value.
Comparison
Authenticity
Hapstone is the official representative of PDT, so the stones are original PDT products.
Click to enlarge
Care
The stone is designed for manual sharpening of knives, razor blades, chisels, and similar tools. The surface can be restored with silicon carbide powder on a flat surface.
Specifications
