Diamond engraving bit is used on the CNC machine for the surface engraving of natural stone like granite, marble, sand stone etc. we get flat kind, ball kind, ball kind with taper for different engraving purpose and engraving way.
Comparing with the traditional hand use engraving bit, the CNC engraving bit is featured with higher strength, better abrasiveness and chemical stability. Thus, its working efficiency is much faster and service life is longer.