Multi-material Drill Bit for drilling in tile, glass, concrete, brick, wood, and plastic. Easy to install and use. High-quality carbide with a reinforced pointed head and strong tungsten carbide tip for efficient penetration through various materials. Resistant to cracking and provides extended durability. U-shaped slot design allows for fast removal of drilling dust. 3-flats shank ensures a secure and stable grip in the drill. For best results when drilling hard materials such as glass, porcelain tile, marble, or granite, use water for lubrication. Color: silver + black. Material: Carbide. Diameter: 6mm. Length: approximately 100mm. Package includes: 10 x Ceramic drill bits. No additional items included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.