Hi dw4047,
Thanks for your question.
These drill bits are able to get through porcelain tiles however our Expert Hex-9 HardCeramic Drill Bits (700KY) or (584KY) are able to get through porcelain tiles of up to 10mm in thickness more efficiently through being 10x faster than standard drill bits.
Kind regards,
Bosch
Answered by: Bosch Customer Service
Date published: 2022-01-24