RUKO STB-HSS-TiN-SP kierrepora 6,5 mm DIN 338 Split Point

The RUKO STB-HSS-TiN-SP Gr.17-6,5-40,5mm is a precision twist drill bit engineered for general-purpose drilling in a wide range of materials. Its titanium nitride coating gives the bit a distinctive gold colour and reduces friction, which helps to extend tool life and improve chip evacuation. The split point tip allows for accurate positioning without a centre punch, making it a practical choice for both professional and DIY use.

Highlights

• High-speed steel body with TiN coating for wear resistance
• Split point grind for self-centring and reduced walking
• DIN 338 standard dimensions for consistent performance
• Right-hand cutting direction for standard drilling
• Suitable for steel up to 900 N/mm² tensile strength

In daily use

This drill bit is suited to drilling in steel, cast steel, grey cast iron, malleable cast iron, non-ferrous metals, and plastics. The 118° point angle and type N helix provide a good balance between cutting speed and chip removal. For optimal tool life, use a suitable coolant or cutting fluid when drilling harder materials.

Full specifications

• Material: High-Speed Steel (HSS)
• Coating: Titanium Nitride (TiN)
• Standard: DIN 338
• Drill bit type: Twist drill bit
• Cutting diameter: 6.5 mm
• Overall length: 101 mm
• Flute length: 63 mm
• Shank type: Cylindrical
• Point angle: 118°
• Point grind: Split point (cross-ground)
• Manufacturing process: Roll-forged
• Tolerance: h8
• Direction of cut: Right-hand cutting
• Helix angle type: Type N (normal)
• Recommended materials: Steel, cast steel, grey cast iron, malleable cast iron, non-ferrous metals, plastics
• Max. tensile strength: Up to 900 N/mm²
• Coolant recommendation: Yes, for optimal performance and tool life
• Application: General purpose drilling
• Colour: Gold (due to TiN coating)
• Packaging: Single piece

Final note

A reliable, coated HSS twist drill bit for everyday metal and plastic drilling tasks.