Ideal for installing taps in thick kitchen and bathroom countertops, this 35 mm core drill has a 100 mm usable length. It can penetrate 3-4 cm stone slabs and any sub-structure in a single, precise operation. It features a vacuum-brazed diamond cutting edge for fast, clean drilling in tough materials like granite, quartz, and porcelain. The M14 thread ensures a secure connection to an angle grinder, while the extended barrel helps with heat management and debris extraction. This tool is essential for any kitchen or bathroom installer.