Sharpal 113N Diamond Credit Card Sharpening Stone 325 Grit

SHARPAL 113N Credit Card Size Diamond Sharpening Stone-Coarse 325 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 Coarse 325 grit (45 micron) is electroplated in nickel onto a steel base for longevity. It quickly restores a dull or damaged edge for 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.