Versatile Drill Bit Set: Includes hard alloy drill bits in 5 sizes (4mm, 6mm, 8mm, 10mm, 12mm) to cover all your drilling needs, from home DIY projects to professional use. Each bit is designed to efficiently bore through materials such as glass, tiles, and marble. Quick-Release Design: Features a quick-release mechanism compatible with automatic chuck systems, enhancing productivity. The anti-slip grooves on each drill bit a firm grip and operation, preventing slippage and improving control. Superior Material Penetration: Crafted from carbide, these drill bits possess exceptional hardness and resistance to wear. They are engineered to penetrate tough materials including concrete, stone, and hardened plastics with and ease. High-Efficiency Drilling: The carbide tips accurate drilling and optimal efficiency. This makes them ideal for a variety of applications, including drilling into floors, brick walls, and soft metals like aluminum and copper. Multi-Material Compatibility: These drill bits are not only perfect for masonry and ceramics but also excel in drilling through soft and hard woods, PVC, ABS plastics, gypsum board, and composite materials, making them indispensable tools for versatile craftsmen. Color: As Shown Material: Metal Package Contents: 5*Carbide Drill Bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.