Diamond hole saw and drill bits, 40 mm diamond hole saw with centering guide, diamond-coated hole saw for tiles, diamond drill bits for glass, tiles, ceramics, marble, etc.

Superior quality: Our glass hole saw with positioning pilot drill is made of high-quality diamond, with a solid hardened steel body, and the surface is designed with a nickel-plated coating, ensuring its high hardness, rust resistance, and corrosion resistance. Robust and durable. Precise Positioning Pilot Design: Each tile hole saw is designed with a removable positioning pilot drill bit, and the pilot drill bit's cutting head is also diamond-coated, making it sharper and more durable, and effectively fixing the hole saw's drilling position for quick hole cutting. Sharp and Clean: These diamond drill bits with a thicker diamond coating make the groove edge cleaner, and can cut precise, flat-bottomed holes without chipping on smooth surfaces such as ceramic tiles, glass, marble, granite, and terrazzo. (Cutting depth up to 30 mm) Easy to Use: Operation is simple, without the need for any other special guide tools. Use the tile hole saw installed with the positioning drill bit to position the hole, remove the positioning drill bit after positioning, then cut the hole directly with the tile hole saw. Note: During the cutting process, remember to add water or coolant to prolong the life of the hole saw.