General description Triangle Drill Bit Set includes 10 drill bits in various sizes, stored in two convenient boxes for easy transport and organization. These bits are designed for precision drilling in a variety of materials, making them ideal for both DIY enthusiasts and professionals. Technical specifications Sizes: 4 x 6mm, 2 x 8mm, 2 x 10mm, 2 x 12mm Material: High-quality carbide Color: Blue/Silver Usage These drill bits are perfect for drilling holes in: Glass Tiles Mirrors Wood Ceramics Marble Brick walls Other hard and brittle materials Other information When using these drill bits, it is recommended to add water or coolant to prevent overheating and smoking of the material. The triangular handle design provides a stable operation, while the U-shaped slot design allows for quick dust removal during drilling.