Cutting stones remove metal. That is the distinction worth understanding before buying: a cutting stone takes material off an edge, where a polishing stone refines a surface that has already been cut.
These are green silicon carbide with a bonding agent chosen to resist loading — the failure mode where a stone fills with the metal it has removed and stops cutting, starting to burnish the edge instead.
- Green silicon carbide with a load-resistant bonding agent
- 6 inch replacement stones for the SVST World Cup Stone Kit
- Sold individually, so you replace only what you wear out
- Designed for use with an edge polishing solution
Use them wet. Dry stones load quickly and then stop working. Water or Secret Sauce floats the swarf clear, which both cuts better and makes the stone last considerably longer.
Cutting or polishing? Use a cutting stone to take down a damaged or work-hardened edge, and polishing stones afterwards to bring the surface back. Most edge work needs both, in that order.
Keep the stone flat against the bevel, work one direction, and let it cut — pressure glazes both stone and edge.
See files and stones.
