RUKO SPB-DIN338-HSS-TiN kierrepora 8,9 mm

The RUKO SPB-DIN338-HSS-TiN Ø8.9 mm twist drill bit is a precision-ground tool engineered for reliable performance in general-purpose drilling. Its split point design reduces walking and improves centering, making it a dependable choice for metalworking tasks.

Highlights

• High-speed steel body with titanium nitride coating for enhanced surface hardness and wear resistance
• 135° split point for accurate starting and reduced thrust
• DIN 338 standard geometry with h8 shank tolerance for consistent chuck fit
• Suitable for alloyed and unalloyed steel, cast iron, non-ferrous metals, and plastics

In daily use

The TiN coating reduces friction and heat buildup, extending tool life in demanding applications. The right-hand cutting direction and standard helix flute ensure efficient chip evacuation. With an overall length of 125 mm and a working length of 81 mm, this bit balances reach and rigidity.

Full specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Diameter: 8.9 mm
• Shank type: Cylindrical
• Point angle: 135°
• Point grind: Split point
• Cutting direction: Right-hand cutting
• Tolerance: h8
• Overall length: 125 mm
• Working length: 81 mm
• Recommended materials: Steel (alloyed/unalloyed), cast iron, non-ferrous metals, plastics
• Manufacturing process: Ground from solid
• Colour: Gold
• Coating hardness: Approx. 2300 HV
• Max. coating temperature: Approx. 600°C
• Flute type: Standard helix
• Packaging: Single unit

Final note

A versatile, accurately ground drill bit for workshop and industrial use where consistent hole quality is required.