RUKO SPB-DIN338 5,7 mm broca helicoidal HSS-Co

Precision-ground 5.7 mm HSS-Co twist drill bit with 5% cobalt for high heat resistance and a 130° split point for accurate starts.

Overview

The RUKO SPB-DIN338-5,7mm-HSSCo is a fully ground twist drill bit manufactured to DIN 338 standards. It features a cylindrical shank, right-hand cutting direction, and a bright surface finish. The split point design ensures precise centering and reduces walking on the workpiece.

What stands out

• 5% cobalt alloyed high-speed steel for high heat resistance and durability
• 130° split point for excellent centering and reduced thrust
• Fully ground flutes for efficient chip removal
• Suitable for alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals, and acid-resistant steels
• h8 tolerance for consistent hole quality

Technical details

• Diameter: 5.7 mm
• Overall length: 93 mm
• Working length (flute length): 57 mm
• Point angle: 130°
• Material: HSS-Co (5% cobalt)
• Standard: DIN 338
• Shank type: Cylindrical
• Cutting direction: Right-hand
• Surface finish: Bright
• Tolerance: h8
• Max. tensile strength: up to 1100 N/mm²

Our verdict

A professional-grade drill bit for demanding metalworking tasks, offering high heat resistance and precise drilling performance.