The No.1 Tool Φ13.5 Taper Shank Twist Drill is a high-quality cutting tool designed for precision and durability in demanding industrial applications. Manufactured from premium M2 high-speed steel (HSS), this drill bit offers excellent heat resistance and hardness, ensuring a long service life and consistent performance when drilling through various metals. Its taper shank design provides a secure and precise fit in compatible drill presses and lathes, minimizing slippage and enhancing accuracy. Conforming to the GB/T1438.1-1996 standard, this 13.5mm drill bit guarantees reliability and adherence to strict manufacturing specifications, making it an ideal choice for professional machining and fabrication tasks.