Ceramic Glass Tile Drill Bit Set, 5 Gold Drill Bits for Efficient Drilling

The drill bit set is made of alloy material. The oxynitride treatment on the cutter head enhances hardness. Surface electrophoretic painting process provides improved durability. The drill set undergoes comprehensive rust-proof grinding treatment, resulting in clean, sharp edges without burrs. The bits are wear-resistant and long-lasting. Fully automated polishing ensures consistent quality. Unique cross angle design reduces cutting resistance, enabling stable drilling performance and faster speed without chipping. Creates clean holes with smooth edges, no wobble, and easy chip removal. Includes 5 different sizes to meet various needs. Compatible with standard electric hand drills and bench drills. Tool shank diameter fits chucks with a clamping range of 10mm and above.