RUKO SPB-DIN338-7,8mm-HSSCo broca helicoidal

Precision-ground 7.8 mm twist drill bit made from HSSCo high-speed steel with cobalt, conforming to DIN 338. Engineered for drilling tough materials with high heat resistance and long tool life.

Overview

The RUKO SPB-DIN338-7,8mm-HSSCo is a professional-grade twist drill bit designed for demanding metalworking applications. Its HSSCo (cobalt-alloyed high-speed steel) construction provides superior hardness and heat resistance, allowing it to maintain sharpness even at elevated temperatures. The bit is manufactured to DIN 338 standards, ensuring precise geometry and consistent performance.

What stands out

• 7.8 mm diameter, ideal for pre-tapping holes for M9 threads or clearance holes.
• HSSCo cobalt steel withstands high drilling temperatures, extending tool life in stainless and alloy steels.
• DIN 338 compliance guarantees standard dimensions and flute profile for reliable chip evacuation.
• Suitable for use in stationary drills and robust hand drills with appropriate chuck capacity.

Technical details

• Diameter: 7.8 mm
• Material: HSSCo (high-speed steel with cobalt)
• Standard: DIN 338
• Brand: RUKO GMBH
• MPN: 1000026404
• EAN: 4007140035264

Our verdict

A reliable cobalt steel drill bit for professionals who need consistent performance in tough materials. The DIN 338 standard ensures compatibility with standard drill chucks and predictable hole quality.