RUKO LOS-HSSCo-25mm HSS-Co5 Twist Drill Bit 25 mm DIN 338

The RUKO LOS-HSSCo-25mm is a fully ground twist drill bit made from high-speed steel with 5% cobalt, offering superior heat resistance and durability for demanding drilling tasks. Its 25 mm diameter and 135° split point make it self-centering and reduce thrust requirements, enabling precise holes in tough materials.

Highlights

• HSS-Co5 material with 5% cobalt for high heat resistance and extended tool life
• Fully ground with bright finish for accurate, smooth holes
• 135° split point self-centers, minimizing walking and thrust pressure
• DIN 338 standard ensures consistent geometry and performance
• Suitable for alloyed and unalloyed steel, stainless steel, cast iron, and non-ferrous metals up to 1000 N/mm² tensile strength

In daily use

This drill bit is ideal for professional workshops and demanding DIY projects. The cobalt alloy withstands high temperatures, allowing higher cutting speeds and longer intervals between regrinds. The cylindrical shank fits standard drill chucks, and the right-hand cutting direction suits conventional drilling machines.

Full specifications

• Drill Bit Type: Twist Drill Bit
• Material: HSS-Co (High-Speed Steel with Cobalt)
• Diameter: 25 mm
• Cobalt Content: 5% (HSS-Co5)
• Shank Type: Cylindrical
• Point Angle: 135°
• Point Type: Split Point (Self-centering)
• Standard: DIN 338
• Manufacturing Process: Fully Ground
• Surface Finish: Bright (Uncoated)
• Cutting Direction: Right-hand
• Recommended Application: Drilling in alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals
• Hardness Suitability: Up to 1000 N/mm² tensile strength
• Overall Length: 160 mm
• Working Length (Flute Length): 108 mm
• Tolerance: h8
• Flute Type: Standard Spiral
• Packaging Quantity: 1 piece

Final note

For precise, efficient drilling in tough metals, the RUKO LOS-HSSCo-25mm delivers reliable performance with its cobalt-enriched steel and self-centering point.