Size:3+4+5+6+8+10+12mm. Achieve both drilling and tapping in a single seamless step with this high-performance set, dramatically enhancing your project efficiency. Each bit features a titanium coating that boosts strength and heat resistance, ensuring long-lasting sharpness and extended usage. Perfectly suited for metal, wood, and plastic, this versatile set caters to a wide array of tasks and materials. The unique thread design ensures clean, smooth thread cutting, eliminating the need for additional tools and enhancing work quality. Available in multiple sizes, this set provides the perfect drill bit for any job, big or small, ensuring you have the right tool for every task. Package Includes: 7PCS/SET 3-12mm Four-Flute Sawtooth Drill Bit.