Diamond Machine Tech 4 In. Diamond Whetstone

Convenient pocket model 4-inch Diamond Whetstone sharpener with protective leather sheath for easy access to a variety of sharpening, hone, or filing needs. Coarse diamond (45 micron/325 mesh) to quickly restore a neglected edge. Size: 4-1/3 In. x 7/8 In. x 3/16 In. Sharpen dry or with water.