Bosch HSS-Co Twist Drill Bit 10.5 mm DIN 338 2609255075

The Bosch 2609255075 is a professional-grade twist drill bit engineered for demanding metal drilling. Its 5% cobalt alloy (HSS-Co) withstands high temperatures, making it suitable for alloyed and unalloyed steel, stainless steel, cast iron, and acid/heat-resistant steels. The 135° split point self-centers and reduces walking, while the fully ground flutes ensure efficient chip removal.

Highlights

• 5% cobalt HSS-Co for high heat resistance
• 135° split point for precise starts without center punch
• Fully ground flutes for smooth drilling and long life
• DIN 338 standard dimensions
• Suitable for alloyed steel, stainless steel, cast iron, and more

In daily use

With a 10.5 mm diameter and 133 mm total length, this bit fits standard drill chucks and provides a 87 mm working length for deep holes. The cylindrical shank ensures secure clamping. The bright/bronze finish reduces friction and improves chip flow.

Full specifications

• Drill bit type: Twist drill bit
• Material: HSS-Co (5% cobalt)
• Diameter: 10.5 mm
• Working length: 87 mm
• Total length: 133 mm
• Shank type: Cylindrical
• Standard: DIN 338
• Point angle: 135°
• Suitable materials: Alloyed steel, unalloyed steel, stainless steel, cast iron, acid and heat-resistant steels
• Manufacturing process: Fully ground
• Flute type: Right-hand cutting
• Surface finish: Bright / Bronze
• Tip design: Split point (self-centering)
• Application: Metal drilling
• Recommended use: Professional / Industrial

Final note

Built for professionals who demand precision and durability in tough metals.