With the Bosch pro Dry Speed Best for Ceramic diamond drill bit, you drill quickly and cleanly through hard ceramic tiles, porcelain stoneware, granite, and marble without requiring liquid coolant. Featuring a 25 mm diameter and a 35 mm working length, this core cutter is ideal for sanitary fittings and plumbing pass-throughs. The 22.23 mm bore fits standard angle grinders using a clamping nut for secure mounting. Premium vacuum-brazed diamond grit prevents chipping or cracking in fragile tiles while delivering a long service life during demanding jobs, helping you complete clean installations effortlessly.