RUKO SPB-DIN338-HSSCo8-Ø8,1mm HSS-Co 8% spiraalboor DIN 338

Twist drill bit with 8.1 mm diameter, engineered for high-performance drilling in tough materials. The HSS-Co 8% cobalt alloy and split point geometry deliver precise, self-centering starts and exceptional heat resistance.

Advantages

Fully ground from high-speed steel with 8% cobalt for very high wear resistance and heat resistance. The 135° split point eliminates walking and reduces thrust, while the bright finish ensures clean chip evacuation. DIN 338 compliance guarantees consistent geometry and h8 tolerance for accurate holes.

Suitable for

• High-alloy steels
• Stainless steel
• Cast iron
• Bronze
• Hard plastics

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co 8%
• Diameter: 8.1 mm
• Point angle: 135°
• Point grind: Split point
• Tolerance: h8
• Total length: 117 mm
• Working length: 75 mm
• Shank type: Cylindrical
• Cutting direction: Right-hand cutting
• Manufacturing process: Fully ground
• Surface treatment: Bright finish

Recommendations

Use with a suitable cutting fluid when drilling stainless or high-alloy steels to extend tool life. For best results, maintain a steady feed pressure and avoid excessive speeds in hard materials.