After sharpening an edge with coarser diamond grits, achieve the ultimate sharp edge with DMT’s Medium Extra Fine (6 micron / 4000 mesh) D8ME Dia-Sharp bench stone. The D8ME offers a simple and easy solution to assuring the finest performance from all tools and knives in all applications. No need to fuss with fragile, messy and high maintenance Arkansas or Waterstones to attain a polished edge for your finest work. The DMT D8ME Dia-Sharp precision engineered diamond surface will stay flat throughout all your sharpening requirements without hollowing, chipping or cracking. Diamond grit clearly marked on side of stone. Sharpening with diamonds is fast and easy. No messy oils needed-sharpen with soapy 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.