Pneumatic Air Pencil Die Grinder Kit Scribe Hammer Engraving Lettering Tool Hose Engraving Pen ,Efficient and Reliable

Quick lettering, use for flexible and comfortable. Pen needles is made of special alloy steel, good durability. Depending on the difference of material ,depth can be up to 1mm. Works great on metal, wood, plastic, glass, stone, porcelain and other hard material. This configuration is great for marking tools, parts and more.