Etching vs. Engraving
The difference between etching and engraving is the depth of the void or cavity that the laser can produce. Laser engraving physically removes the material surface leaving a void or cavity in the surface that is generally visible to the eye and noticeable to the touch. Laser etching changes scratches the surface with heat which changes the color of the material.
Both processes are computer driven and controlled making it fast and accurate every time.