* Precision design micro grinder, safe and durable, flexible and convenient to use.
* The pen needles are made of special alloy steel, with good durability. High speed rotation, improve grinding speed.
* This setup is ideal for marking tools, parts, and more.
* Widely used in the letter category marker effect on the surface of metal, porcelain, glass, plastic, marble, wood, stone, porcelain and other hard materials.