For bench stone applications when versatility is important but storage is limited choose DMT 6-in. Double Sided Dia-Sharp® continuous diamond sharpening bench stone. Two grit options in one stone. For knives blades and fine tools. Extra-Coarse diamond (60 micron / 220 mesh) when significant removal of material is needed for damaged edges. May be used to flatten conventional and water stones. Coarse diamond (45 micron / 325 mesh) to quickly restore a neglected edge. Size: 6 x 2 x 1/4 Diamond grit 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.