Broca helicoidal RUKO SPB-DIN338-HSSCo8-Ø5,9mm HSS-Co8

Twist drill bit with 5.9 mm diameter, made from HSS-Co8 high-speed steel with 8% cobalt for high heat resistance and wear resistance. Ideal for drilling stainless steel, acid-resistant steel, heat-resistant steel, high-alloy steel, cast iron, non-ferrous metals, and plastics.

Advantages

High cobalt content ensures superior hardness and heat resistance, enabling high cutting speeds and long tool life. Split point design provides accurate centering and reduces thrust, while the 135° point angle is optimized for hard materials. Fully ground flutes ensure smooth chip evacuation and precise hole quality.

Suitable for

• Stainless steel
• Acid-resistant steel
• Heat-resistant steel
• High-alloy steel
• Cast iron
• Non-ferrous metals
• Plastics

Key specifications

• Diameter: 5.9 mm
• Overall length: 93 mm
• Working length (flute length): 57 mm
• Material: HSS-Co8 (8% cobalt)
• Point angle: 135°
• Point grind: Split point
• Shank type: Cylindrical
• Shank diameter: 5.9 mm
• Cutting direction: Right-hand
• Tolerance: h8
• Standard: DIN 338
• Surface finish: Bright

Recommendations

Use with suitable cutting oil or coolant for best results on tough materials. Ensure proper RPM and feed rate based on material hardness.