RUKO SPB-DIN338-HSSCo8-Ø5,7mm σπειροειδές τρυπάνι

Twist drill bit with 5.7 mm diameter for industrial drilling in demanding materials. Made from HSS-Co8 high-speed steel with 8% cobalt, this drill bit offers very high heat resistance and wear resistance, ensuring long tool life even in stainless steel and high-alloy steels.

Advantages

Split point geometry (135°) provides self-centering and reduces thrust, while the fully ground flutes ensure precise hole quality. The bright surface finish reduces friction and improves chip evacuation.

Suitable for

• Stainless steel
• High-alloy steel
• Cast iron
• Bronze
• Acid-resistant steel

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co8 (High-Speed Steel with 8% Cobalt)
• Diameter: 5.7 mm
• Shank type: Cylindrical (Straight Shank)
• Point angle: 135°
• Point type: Split Point (Self-Centering)
• Flute type: Type N (Normal)
• Surface finish: Bright
• Cutting direction: Right-hand
• Total length (l1): 93 mm
• Working length (l2): 57 mm
• Tolerance: h8
• Manufacturing process: Fully Ground

Recommendations

Use with appropriate cutting fluid for optimal performance and tool life. Suitable for use in stationary drilling machines and powerful hand drills.