RUKO SPF-FCut-HSSCo-6.0mm HSS-Co Twist Drill Bit DIN 338

For machinists and metalworking professionals drilling tough alloys, the RUKO SPF-FCut-HSSCo-6.0mm is a fully ground HSS-Co twist drill bit that delivers reliable performance in high-alloy steels, stainless steels, and heat-resistant metals. Its 5% cobalt content provides high heat resistance and excellent wear resistance, while the 135° split point ensures self-centering starts without a pilot hole.

Key specifications

• Drill bit type: Twist drill bit
• Material: HSS-Co (High-Speed Steel Cobalt, 5% cobalt)
• Standard: DIN 338
• Diameter: 6.0 mm
• Point angle: 135°
• Point type: Split point (self-centering)
• Helix angle: Type N (normal)
• Shank type: Cylindrical
• Shank diameter: 6.0 mm
• Overall length: 94 mm
• Flute length: 57 mm
• Tolerance: h8
• Surface finish: Bright (uncoated)
• Cutting direction: Right-hand cutting
• Manufacturing process: Fully ground

Why choose it

The cobalt alloy withstands high drilling temperatures, extending tool life in demanding applications. The split point reduces walking and eliminates the need for center punching, improving hole accuracy. Fully ground flutes ensure smooth chip evacuation and consistent cutting performance.

Ideal use cases

• Drilling high-alloy steels and stainless steels
• Working with heat-resistant steels and cast iron
• General purpose drilling in non-ferrous metals
• Precision drilling in machine shops and maintenance workshops

Good to know

This drill bit is designed for use with stationary drilling machines and hand drills. For best results, use appropriate cutting fluid and speeds for the material being drilled.