Product Description Choose DMT's 6-inch double-sided Dia-Sharp diamond sharpening bench stone. With 2 grit options, it's ideal for use with knives, blades, and fine tools. Fine diamond (25 micron / 600 mesh) creates razor-sharp edges, while the Extra-Fine (9 micron / 1200 mesh) polishes and refines after sharpening with a coarser diamond. Durable construction will provide years of consistent performance and reliable service. For proper tool maintenance, professionals rely on the superior quality and versatility of USA-made DMT products. From the Manufacturer For bench stone applications when versatility is important, but storage is limited, choose DMT's 6" Double Sided Dia-Sharp continuous diamond sharpening bench stone. Two grit options in one stone. For knives, blades and fine tools. Coarse diamond (45 micron / 325 mesh) to quickly restore a neglected edge. Fine diamond (25 micron / 600 mesh) for a razor sharp edge. Size: 6" x 2" x 1/4" Diamond grade clearly marked on each side of stone. Sharpening with diamonds is fast and easy. No messy oils needed--sharpen dry or with water. Durable construction will provide years of consistent performance and reliable service For proper tool maintenance, Woodworkers, chefs and other professionals rely on the superior quality and versatility of DMT products. Made in USA.