ILOVETOOL 20-Pack Diamond Core Drill Bits 6mm For Glass, Tile & Stone

DIYers and professionals, this 20-pack of diamond drill bits from ILOVETOOL is absolutely essential for anyone working with hard materials! Each bit is 6mm in diameter (close to 1/4 inch) with a total length of 51mm and drilling depth of 23mm - perfect for most drilling needs in tile, glass, marble, and granite. The diamond coating is what makes these bits so effective - they cut through hard materials cleanly and efficiently without chipping or cracking when used properly. The 5.3mm shank diameter fits standard drills perfectly. Having 20 pieces in the pack is fantastic value - you'll have plenty of spares for when bits wear out or for different projects. The key to success with these bits is using water as a lubricant and coolant - it keeps the bit from overheating and helps flush away debris. Start drilling at a 45-degree angle to create a groove, then gradually move to 90 degrees as the hole forms. Never use hammer action with these bits - steady pressure and slow speed give you the cleanest results. The holes they create require no additional finishing work since the cutting is so clean. Whether you're installing bathroom fixtures, creating custom tile designs, working with glass projects, or any other task requiring precise holes in hard materials, these diamond bits deliver professional results. The quality is impressive for the price - they feel substantial and well-made, not like cheap imports that dull quickly. Seriously, if you've ever struggled with drilling tile or glass using regular bits, these diamond-coated cores will completely change your experience - they make what seems like a difficult job surprisingly manageable.