RUKO SPB-DIN338-HSSCo8-Ø2,1mm spiraalboor

Precision-ground HSS-Co 8% twist drill bit with 2.1 mm diameter and 135° split point for self-centering starts in tough materials.

Overview

The RUKO SPB-DIN338-HSSCo8-Ø2.1mm is a fully ground twist drill bit manufactured from high-speed steel with 8% cobalt alloy. It conforms to DIN 338 and features a cylindrical shank, right-hand cutting direction, and a bright polished finish. The split point grind with 135° point angle ensures accurate positioning without center punching, while the cobalt content provides high heat and wear resistance for demanding applications.

What stands out

• 8% cobalt HSS for excellent heat resistance and durability
• Split point design eliminates walking and reduces thrust
• Fully ground flutes for precise hole quality and efficient chip evacuation
• DIN 338 standard ensures compatibility with standard drill chucks
• Bright polished surface reduces friction and resists corrosion

Technical details

• Drill Bit Type: Twist Drill Bit
• Standard: DIN 338
• Material: HSS-Co 8% (High-Speed Steel with 8% Cobalt)
• Drill Diameter: 2.1 mm
• Overall Length: 49 mm
• Flute Length: 24 mm
• Shank Type: Cylindrical (Straight Shank)
• Point Angle: 135°
• Point Grind: Split Point (Self-Centering)
• Surface Finish: Bright / Polished
• Manufacturing Process: Fully Ground
• Tolerance: h8
• Recommended Materials: Alloyed and unalloyed steels, stainless steel, cast iron, non-ferrous metals, plastics
• Heat Resistance: High
• Wear Resistance: Excellent
• Application: General purpose drilling, especially in tough and abrasive materials
• Cutting Direction: Right-hand cutting
• Packaging: Single Drill Bit

Our verdict

A professional-grade cobalt drill bit that excels in stainless steel and abrasive alloys, offering precision and longevity for demanding workshops.