RUKO HSS Type N Twist Drill Bit - 3.5mm x 70mm

The RUKO HSS Type N Twist Drill Bit is a highly efficient standard drill designed for all usual drilling tasks across a wide variety of normal materials. Manufactured to DIN 338 standards, this rolled twist drill bit offers exceptional reliability and high security against fracture, ensuring long-lasting performance even in demanding applications.

This versatile drill bit is well-suited for machining steel and cast-steel, including both alloyed and unalloyed variants with strengths of up to approximately 900 N/mm². It is also highly effective on grey cast iron, malleable cast iron, diecast metal, iron sinter, nickel-silver, and graphite cast iron. Additionally, it performs excellently when working with short-chipping aluminium alloys, bronze, and brass, making it an indispensable tool for any workshop.

Engineered for precision, the drill bit features a robust High-Speed Steel (HSS) construction with a protective black surface coating that enhances durability. The cylindrical shaft and right-hand cutting direction ensure smooth operation and easy compatibility with standard chucks. It boasts a 118° point angle and a 25° - 30° spiral angle for optimal chip removal. Designed as a Shape N bit, it incorporates a helical point normal ground, h8 tolerance, a normal groove profile, and a normal core, delivering accurate and clean holes every time.

Whether you are a professional tradesperson or a dedicated DIY enthusiast, the RUKO HSS Type N Twist Drill Bit provides the precision, strength, and versatility required for superior drilling results.

Variant Details

• Size: 3.5mm x 70mm