RUKO SPB-DIN338-HSSCo8-Ø7,0mm punta elicoidale HSS-Co 8%, 7,0 mm, DIN 338, Split Point

This RUKO twist drill bit stands out with its 8% cobalt alloy, delivering high heat resistance for demanding metalworking tasks. The split point geometry ensures precise centering without wandering, while the fully ground flutes provide clean chip evacuation.

Highlights

• HSS-Co 8% high-speed steel with cobalt for superior hardness and heat resistance
• 135° split point for self-centering and reduced thrust pressure
• DIN 338 standard with cylindrical shank, suitable for standard drill chucks
• Bright uncoated finish for general-purpose drilling in tough materials

In daily use

Engineered for high-alloy steels, stainless steel, acid-resistant steel, heat-resistant steel, cast iron, and bronze. The right-hand cutting direction and standard spiral flute design ensure efficient material removal. Coolant is recommended to maximize tool life and performance.

Full specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co 8% (High-Speed Steel with 8% Cobalt)
• Diameter: 7.0 mm
• Shank type: Cylindrical (straight shank)
• Point angle: 135°
• Point grind: Split point (self-centering)
• Flute type: Standard spiral flute
• Surface finish: Bright (uncoated)
• Total length: 109 mm
• Working length (flute length): 69 mm
• Tolerance: h8
• Manufacturing process: Fully ground
• Direction of cut: Right-hand cutting
• Heat resistance: High
• Coolant recommended: Yes
• Packaging: Single piece

Final note

Choose this drill bit for reliable performance in hard-to-machine metals, backed by RUKO's precision manufacturing.