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Aluminum oxide polishing stones with controlled grain and special bond, designed for finishing operations with fast material removal.
Series
PC series stones are designed for finishing operations while still providing fast abrasive removal.
Abrasive
Made with strictly controlled aluminum oxide grain and a special bond for predictable sharpening performance.
Format
The 6 mm abrasive layer offers a longer life cycle than thinner stock stones and has become a common guided-sharpening format.
Grit range
Recommended set
The Boride PC recommended set includes 150, 220, 400, 600, and 1200 grit stones.
PC 1200 is especially popular as a finishing stone and is often included in Boride stone bundles.
Performance
Boride PC stones are a practical choice when you need a finishing-focused stone that still removes material quickly.
They are suitable for Hapstone and similar guided sharpening systems and are mounted on high-quality aluminum blanks.
Lubricants
• Water
• Soapy water
• Boride Bori-Lube
• Water solution of dipropylene glycol
• WD-40, refined olive oil, or oleic acid for experienced users
Preparation
When using water, soak the stone for 1–2 minutes.
When using oil, apply 1–2 drops and spread evenly over the surface. If the stone absorbs the oil, use a larger amount.
Natural production marks
Boride stones may have saw strokes on the working surface, lacquer residues, or small chips at the corners and along the edges no larger than 1 mm.
These marks are usually removed during stone preparation. Additional lapping can be done with loose silicon carbide powder or a diamond lapping plate.
Specifications
