RUKO SPB-DIN338 5,75mm HSS-Co kierrepora

Engineered with a 135° split point and 5% cobalt alloy, this RUKO twist drill bit delivers immediate self-centering and exceptional heat resistance for demanding metalwork.

Overview

The RUKO SPB-DIN338 is a precision-ground twist drill bit manufactured to DIN 338 standards. Its high-speed steel with 5% cobalt (HSS-Co) construction provides superior hardness and wear resistance, making it ideal for drilling tough materials. The 135° split point eliminates walking and reduces thrust pressure, while the bright finish ensures smooth chip evacuation.

What stands out

• 5% cobalt HSS-Co for high heat resistance and extended life
• 135° split point for accurate, fast drilling without center punching
• Fully ground flutes with Type N helix for efficient chip removal
• DIN 338 compliant dimensions: 93 mm total length, 57 mm flute length
• h8 tolerance for precise hole sizing

Technical details

• Diameter: 5.75 mm
• Total length: 93 mm
• Flute length: 57 mm
• Point angle: 135°
• Point type: Split point
• Flute type: Type N (normal helix)
• Shank type: Cylindrical (straight)
• Cutting direction: Right-hand
• Tolerance: h8
• Surface finish: Bright
• Suitable for: Alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals up to 1100 N/mm² tensile strength

Our verdict

A professional-grade drill bit that excels in hard metals, offering precision and durability for workshop or industrial use.