4 Pieces Diamond Sharpening Stone Set,Diamond Lapping Plate Coarse/Medium/Fine Grit Sharpener,400/600/1000/1200 Grit$$Tools & Hardware Other

4 pieces sharpening plates,made of durable diamond material. Thin grinding polishing diamond square knife tool sharpening stone whetstone 400/600/1000/1200 grit. Diamond coated material is more efficient than normal whetstone. Use for:grinding stone,jade,seal carving knife,wood crafts, metal grinder workpiece etc. Add a little water when grinding,help to prolong Diamond Sharpening Stone life.Wipe the surface of the water stains after using to avoid rust.