Designed for small plumbing and electrical penetrations, this 12 mm diamond core drill is perfect for creating clean holes for PEX lines and conduits in hard tiles. It features vacuum-brazed diamonds for fast cutting and an M14 thread for a direct, stable fit on an angle grinder. The integrated wax core provides lubrication for efficient dry drilling without water, ensuring a long service life. This bit delivers a precise, chip-free hole for a professional finish.