Features: Multifunctional: Designed for both hand drills and electric drills, our versatile drill bits are suitable for professionals and enthusiasts alike. Suitable for a wide range of drilling projects. Fast: Sharpened side edges maximize carbide surfact contact for fast drilling. Firm And Multipurpose: These triangles handle drill bits are made of good quality material, Surfaces anti-rust treatments,Smoothes and sharpen without burrs with reinforced head prevent bit cracking and provide longer life,. Fast and Efficient Drilling: Special triangles head, high hardness, sharpen. Spears pointed design strong tip can easily penetrate various material and reduces breakouts.Triangles processing can effectively prevent slippage when working to ensure smoothes movement of chips. Wide range of applications: Widely applicable to ceramic tile, porcelain, marble, glass, wood, and plastic Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description Size: 3/4/5/6/8/10/12mm Quantity: 7pcs Package List: 7Pcs Drill Bit Set