... 3.We can drill holes perfect Ceramic GlassOur ceramic glass can be well used to induction cooktop, heater, ... etc.The detail of our glass:1.Thermal shock resistance≤800oC2.Black glass used to induction cooktop.3.We ... can drill holes perfect on the glass, and we can drill Ø12, Ø16, Ø18, Ø46 ... are the factory, we can produce the ceramic glass for your demand, pls contact with me if ...