RUKO SPB-DIN338-8,9mm-HSSCo σπειροειδές τρυπάνι

Twist drill bit with 8.9 mm diameter, DIN 338 standard, made of HSS-Co 5% cobalt alloy for high heat resistance and long life. Ideal for drilling hard materials like stainless steel and alloyed steel.

Advantages

Self-centering split point reduces drilling pressure and improves accuracy. Fully ground flutes ensure efficient chip evacuation and smooth cutting. Bright polished finish reduces friction and wear.

Suitable for

• Alloyed and unalloyed steel
• Stainless and acid-resistant steel
• Cast iron
• Non-ferrous metals
• Plastics

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co 5%
• Diameter: 8.9 mm
• Total length: 125 mm
• Working length: 87 mm
• Shank type: Cylindrical (straight shank)
• Shank diameter: 8.9 mm
• Point angle: 135°
• Point type: Split point
• Surface finish: Bright / Polished
• Cutting direction: Right-hand cutting
• Manufacturing process: Fully ground
• Tolerance: h8

Recommendations

Use with cutting fluid for best results in tough materials. Suitable for hand drills and drill presses with appropriate chuck capacity.