Tungsten steel, hard alloy experimental engraving pen glass silicon quartz section marking the cut marking

This style of writing pen nibNatural diamondIt can be used for glass, jade, wafer, silicon chip engraving, line drawing, marking, name carving, etc.

The length of the stalk is about 13.5CM to 14CM

The hardness of the natural diamond nib is very high. When you use it, you must pay attention not to force too deeply, otherwise it will damage the tip easily.