DMT Diafold Hook & Knife Diamond Whetstone DM. This Knife blade Sharpening System professional product specialists at DMT is the perfect sharpener for the avid knife user. For a superb way to make sure your knife is is ready for any cutting task choose the DMT Diafold Hook & Knife Diamond Whetstone. Specifications for DMT Diafold Hook & Knife Diamond Whetstone: Manufacturer: DMT Sheath Material: Composition Features of DMT Diafold Hook & Knife Diamond Whetstone: Portable lightweight with convenient fold & go handles which enclose and protect the diamond whetstone when not in use Fine diamond (25 micron / 600 mesh) for a razor sharp edge Easy to sharpen a variety of knives and hooks Sharpens knives and tools faster than conventional stones with DMT's monocrystalline diamond surface Convenient size 9 1/2" open 5" closed No oil is needed-sharpen dry or with water Durable construction will provide years of consistent performance and reliable service Package Contents: DMT Diafold Hook & Knife Diamond Whetstone DMT DMFFHWF: Diafold Hook & Knife Diamond Whetstone