* 7003-369 Lot of two diamond system sharpening stones. One by SMITH'S with lid saying it is a Micro-Tool Sharpening Pad, other is by DMT with lid saying it's a Diamond Sharpening System. Both are a plate mounted on top of plastic base, oval or circular holes in plate, and are supposedly multiple layers of micron-sized moncrystalline diamonds banded in nickel. Both have light use. Old hardened rubber bands stuck on both. Good 25-50 (NCY32)