With the Carat Brilliant ETDB012000 diamond tile drill bit, you drill smoothly through hard ceramic tiles and natural stone without cracking delicate surfaces. Thanks to the integrated lubricating wax in the core, you work completely dry without the mess of external water cooling systems. The 1/4" external hex shank fits directly into standard drill chucks and bit holders, ensuring reliable torque transfer without slipping. Featuring a 12 mm diameter and a 35 mm length, it creates clean, accurate holes for plumbing feed-throughs and wall plugs. For optimal drilling performance, use a machine operating at a minimum of 1500 RPM.