114N Diamond Sharpening Stone Fine 600 Grit

SHARPAL 114N Credit Card Size Diamond Sharpening Stone-Fine 600 Grit measures L 3 1/4-inch x W 2 1/8-inch x D .14-inch. Fits easily in pocket or wallet. Comes in convenient storage pouch. Industrial monocrystalline diamond Fine 600 grit (25 micron) is electroplated in nickel onto a steel base for longevity. It quickly sharpens knives, small edged and pointed tools including carbide, high speed steel, titanium, ceramics and most any super hard material including the newer materials being used by most knife manufacturers. Sharpen dry. No messy oil needed. Patent pending ring grip holding protects hands from hurting when sharpen.