Microwave drill for ceramics

The microwave drill is effective for drilling and cutting in a variety of hard, nonconductive dielectric materials but not in metals. The latter materials reflect the radiation and, therefore, are little affected by the microwave drill. Hence, the microwave drill enables a distinction between different materials. Specifically, the microwave drill can be implemented to make holes and grooves in dielectric coatings on metallic substrates with no damage to the underlying metallic substrate.