RUKO SPB-DIN338-HSSCo8-Ø5,3mm Broca helicoidal HSS-Co8, 5,3 mm, DIN 338

Precision-ground HSS-Co8 twist drill bit with 5.3 mm diameter, engineered for high-temperature performance up to 600°C. The 130° split point ensures accurate centering and reduced thrust pressure, making it ideal for demanding metalworking tasks.

Overview

The RUKO SPB-DIN338-HSSCo8-Ø5.3mm is a premium twist drill bit manufactured from high-speed steel with 8% cobalt alloy (HSS-Co8). It conforms to DIN 338 standards, featuring a cylindrical shank and right-hand cutting direction. The bright ground finish and h8 tolerance guarantee precise hole dimensions and smooth chip evacuation.

What stands out

• Exceptional heat resistance up to 600°C for prolonged tool life
• Split point geometry eliminates walking and enables faster drilling
• Suitable for alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals, and plastics
• Ground from solid for superior concentricity and edge retention

Technical details

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co8 (8% cobalt high-speed steel)
• Diameter: 5.3 mm
• Total length: 91 mm
• Flute length: 57 mm
• Shank type: Cylindrical
• Shank diameter: 5.3 mm
• Point angle: 130°
• Point grind: Split point
• Surface finish: Bright (ground)
• Cutting direction: Right-hand
• Tolerance: h8
• Manufacturing process: Ground from solid

Our verdict

A professional-grade cobalt drill bit that delivers precision and durability in tough materials. The split point and high cobalt content make it a reliable choice for workshops and industrial applications.