RUKO SPB-DIN338-HSSCo8-Ø9,2mm HSS-Co8 kierrepora

This twist drill bit stands out with its HSS-Co8 cobalt alloy construction, offering exceptional heat resistance and durability for demanding metal drilling tasks. Unlike standard HSS bits, the 8% cobalt content allows it to maintain hardness at high temperatures, making it suitable for stainless and acid-resistant steels.

Highlights

• DIN 338 standard with 9.2 mm diameter and 125 mm total length
• 135° split point for self-centering and reduced walking
• Bright ground finish for precise holes and efficient chip evacuation
• Right-hand cutting with cylindrical shank and h8 tolerance

In daily use

Ideal for professional workshops and serious DIY enthusiasts, this drill bit delivers clean, accurate holes in tough materials. The split point design ensures fast starts without a center punch, while the cobalt steel extends tool life even under high-speed operations. Use with cutting fluid for optimal performance.

Full specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co8 (High-Speed Steel with 8% Cobalt)
• Diameter: 9.2 mm
• Shank type: Cylindrical
• Point angle: 135°
• Point type: Split point
• Surface finish: Bright / Ground
• Cutting direction: Right-hand cutting
• Tolerance: h8
• Total length: 125 mm
• Working length: 87 mm
• Recommended applications: Stainless steel, acid-resistant steel, heat-resistant steel, high-alloy steels, cast iron, non-ferrous metals
• Manufacturing process: Ground from solid
• Heat resistance: Very high
• Self-centering: Yes
• Chip evacuation: Good
• Coolant requirement: Recommended for optimal performance and tool life
• Packaging quantity: 1 piece
• Colour: Silver / Bright

Final note

Engineered for precision and longevity, this RUKO drill bit is a reliable choice for challenging metalworking tasks.