DIYers and professionals, this BRSCHNITT diamond drill bit set is absolutely essential for drilling through hard materials! The 5-piece set includes 1/4 inch (6mm), another 1/4 inch (6mm), 5/16 inch (8mm), 3/8 inch (10mm), and 1/2 inch (12mm) sizes - perfect for various plumbing, electrical, and installation projects. Using vacuum brazed technology, the diamond particles are securely attached to the core steel, providing excellent resistance to temperature and friction. These bits work great for dry drilling through hard porcelain tile, ceramics, bathroom tile, granite, marble, masonry, concrete, glass, and hard plastics. The spiral groove design at the top helps with chip removal, while the wax inside provides cooling and lubrication during use. With 8mm diamond height and 65mm total length, these bits offer good durability and reach. The round shank fits any electric drill, hand drill, or bench drill (you'll need an angle grinder drill chuck for use with angle grinders). While they work well for dry drilling, using water can prolong their lifespan even further. The quality is professional-grade, with high-grade diamond grit for effortless cutting and improved durability in tough applications. Whether you're installing bathroom fixtures, working with stone countertops, or doing tile projects, these diamond core bits deliver clean, precise holes without chipping or cracking your materials. Your drilling tasks just got much easier and more professional with this quality bit set!
Free 30-day returns 
Free 30-day returns
