RUKO SPB-DIN338-HSS-TiN Twist Drill Bit 6.4 mm

Drilling into tough materials like steel and cast iron demands a bit that stays sharp and resists heat. The RUKO SPB-DIN338-HSS-TiN twist drill bit meets that challenge with a titanium nitride coating that reduces friction and improves wear resistance, making it a reliable choice for professional and industrial use.

Who is it for

This drill bit is built for machinists, metalworkers, and serious DIYers who need consistent performance when drilling steel, cast iron, non-ferrous metals, plastics, and wood. Its DIN 338 standard geometry ensures precision and compatibility with standard drill chucks.

Main features

• High-speed steel (HSS) body with titanium nitride (TiN) coating for enhanced wear resistance and reduced friction.
• DIN 338 standard dimensions: 6.4 mm diameter, 101 mm overall length, 63 mm flute length.
• Right-hand cutting with a 118° point angle for efficient chip removal and accurate hole starts.
• Cylindrical shank with h8 tolerance for secure gripping in standard drill chucks.
• Optimized flute design for improved chip evacuation, especially in deeper holes.

Specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Diameter: 6.4 mm
• Overall length: 101 mm
• Working length (flute length): 63 mm
• Shank type: Cylindrical
• Point angle: 118°
• Cutting direction: Right-hand cutting
• Tolerance: h8
• Manufacturing process: Ground from solid
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics, wood

Tips

Use cutting oil when drilling steel to prolong bit life. For best results, start with a center punch to prevent walking, and reduce speed when drilling harder materials.