The DMT 8" DuoSharp diamond sharpening stone is DMT's innovative| multi-patented DuoSharp® Bench Stone. The DuoSharp sharpening stone is a precision flat| two diamond grit sharpener guaranteed to provide consistent| even sharpening every time. Two sided sharpening with Coarse diamond to repair an edge and Fine diamond for a razor sharp edge. Durable construction will provide years of consistent performance and reliable service

• 8 " High quality Fine / Coarse double sided diamond sharpening stone.
• Black - Extra Coarse 60 micron - 220 mesh.
• Blue - Coarse 45 micron - 325 mesh.