A popular sharpening choice for DIY professionals for over 45 years. The DMT Diafold provides the power of 2 sharpening surfaces in one easy-to-use, compact, and powerful sharpener. DMT has combined our very best coarse diamond (45 mic/325) on one side to quickly restore neglected edges and fine diamond (25 mic/600 mesh) on the opposite side, to provide a final pristine and razor-sharp edge. Convenient and portable size: 9-1/2 in. open, 5 in. closed. DMT's new polycarbonate, ergonomic folding handles protect the sharpener when not in use. Sharpens in a fraction of the time required by conventional stones and there is no need for messy oils or water. Construction will provide years of consistent performance and reliable service. For proper tool maintenance, woodworkers, tradesman, and outdoorsman as well as other professionals rely on the superior quality and versatility that only DMT products can provide.