35mm Hole Saw, Diamond Drill Bit with Central Guide Drill Bit, with Diamond Surface Coating for Cutting Glass, Tiles, Ceramics, Marble

【Precise Positioning】: Compared to traditional glass hole saws, our hole saw features a positioning assistance function. The pilot drill bit in the center helps you position accurately, ensuring the drill bit doesn't slip or jam, and helping you drill precise holes.【Cutting Effect】: The diamond surface coating is treated using a sintering method. The blade contains diamond particles from the inside out to ensure the edge is always sharp. Low cutting resistance and stable drilling allow for high-precision, smooth cutting without damaging the edges for optimal cutting results.【High-Quality Material】: The diamond hole saw is made of industrial-grade, high-strength carbon steel, and the surface is nickel-plated, which effectively prevents corrosion and rust. The drill bit has a thick and uniform diamond coating on its surface, which improves wear resistance and extends the reamer's lifespan. [Chip Removal Design]: The cutting head of our diamond drill bits features a notched design with clearance holes on the side, which allows for the ingress of cooling water and ensures that chips and other particles escape from the drill hole during operation, making drilling more convenient and efficient. [Wide Application]: These diamond drill bits are suitable for cordless drills, lithium-ion drills, and bench drills. Widely used for cutting precise holes in glass, ceramics, porcelain, tiles, stoneware, limestone, slate, marble, pumice stone, and fiberglass. Diamond drill bit with a central pilot, corrosion-resistant nickel-plated body, and thick diamond coating. With excellent cut-resistant performance, it can meet your daily DIY home needs.