RUKO SPB-DIN338-HSS-TiN kierreporanterä 9,1 mm

For machinists and metalworkers who need a reliable twist drill bit for precision drilling in steel and cast iron, the RUKO SPB-DIN338-HSS-TiN 9.1 mm delivers consistent performance. Its titanium nitride coating reduces friction and heat, extending tool life in production environments.

Key specifications

• Diameter: 9.1 mm
• Overall length: 125 mm
• Flute length: 87 mm
• Material: High-speed steel (HSS) with TiN coating
• Point angle: 118°
• Shank: Cylindrical, right-hand cutting
• Standard: DIN 338, tolerance h8

Why choose it

The TiN coating offers high hardness (approx. 2300 HV) and heat resistance up to 600°C, making this bit suitable for demanding drilling tasks. Ground from solid, it provides accurate hole sizing and clean cuts in alloyed and unalloyed steel, grey cast iron, malleable cast iron, non-ferrous metals, and plastics.

Ideal use cases

• Drilling precise holes in metal components
• General-purpose workshop and maintenance work
• Production drilling where consistent quality is required

Good to know

This drill bit is sold individually and is designed for use with standard drill chucks. Its golden TiN coating also aids in chip evacuation and reduces built-up edge.