RUKO SPB-DIN338-HSS-TiN kierrepora 15/32 tuumaa (11,91 mm), TiN-pinnoitettu, DIN 338

For machinists and metalworking professionals who need reliable, precise holes in tough materials, the RUKO SPB-DIN338-HSS-TiN twist drill bit delivers consistent performance. With a 15/32 inch (11.91 mm) diameter and titanium nitride coating, it handles steel, cast iron, and non-ferrous metals with ease.

Key specifications

• Diameter: 15/32 inch (11.91 mm)
• Overall length: 151 mm
• Flute length: 101 mm
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Standard: DIN 338
• Point angle: 118°
• Shank: Cylindrical
• Cutting direction: Right-hand
• Tolerance: h8

Why choose it

The TiN coating increases surface hardness to approximately 2300 HV and heat resistance up to 600°C, extending tool life and reducing wear. Fully ground flutes ensure excellent chip evacuation and good self-centering for accurate starts.

Ideal use cases

• Drilling steel and cast iron in workshops
• Creating holes in non-ferrous metals like aluminum and brass
• General-purpose drilling in plastics and wood

Good to know

This drill bit is manufactured to DIN 338 jobber length standards, making it compatible with standard drill chucks. The gold-colored TiN coating provides a visual indicator of the premium surface treatment.