RUKO SPB-DIN338-9.1mm-HSSCo τρυπάνι

Precision-ground HSS-Co twist drill bit with 5% cobalt for demanding metal drilling up to 1100 N/mm² tensile strength.

Overview

The RUKO SPB-DIN338-9.1mm-HSSCo is a fully ground twist drill bit manufactured to DIN 338 standards. It features a 9.1 mm diameter, 125 mm overall length, and 87 mm flute length. The split point with 135° point angle provides self-centering and reduces thrust pressure.

What stands out

• High-speed steel with 5% cobalt (HSS-Co) for high heat resistance and durability
• Split point geometry for accurate starting without center punching
• Bright finish and h8 tolerance for consistent hole quality
• Suitable for alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals, and plastics

Technical details

• Drill bit type: Twist drill bit
• Material: HSS-Co (5% cobalt)
• Standard: DIN 338
• Diameter: 9.1 mm
• Overall length: 125 mm
• Flute length: 87 mm
• Shank type: Cylindrical
• Shank diameter: 9.1 mm
• Point angle: 135°
• Point type: Split point
• Cutting direction: Right-hand
• Manufacturing process: Fully ground
• Surface finish: Bright
• Tolerance: h8
• Max tensile strength of material: 1100 N/mm²

Our verdict

A professional-grade cobalt drill bit that excels in tough materials, delivering precise holes and long tool life.