5pcs/set Efficient Universal Drilling Tool Cemented Carbide Drill Bit Ceramic Brick Wall Hole Opening Power Tools Accessories

*Full-grinding and anti-rust treatment, clean and sharp without burrs .The drill bit is more wear-resistant and more durable . *Fully automated polishing: Polished CNC is fully automated, each one is unified. *Small incision resistance，feature drilling stably, fast speed, not breaking the border. Opening neat, smooth, no broken edges, no tremor phenomenon, chip easily. *Professional glass and tile drill bits provide smooth and accurate drilling in ceramic tiles, marble, thin iron plate, mirrors and glass. Remember to add Water or coolant when drilling. *5 different sizes, suitable for your different needs.It Can be installed in the general electric hand drill, bench drill.