RUKO SPB-DIN338-HSS-G ristihiottu kierteityspora 7,75 mm

Precision-ground from high-speed steel (HSS-G) to DIN 338, this 7.75 mm twist drill bit delivers a 135° split point that self-centers and reduces feed pressure for fast, accurate starts.

Overview

The RUKO SPB-DIN338-HSS-G is a fully ground twist drill bit engineered for reliable drilling in steel, cast iron, non-ferrous metals, and plastics. Its cylindrical shank fits standard drill chucks, while the bright finish and h8 tolerance ensure consistent performance.

What stands out

• 135° cross-ground split point for self-centering and reduced feed pressure
• Suitable for materials up to 900 N/mm² tensile strength
• Right-hand cutting with standard helix angle for efficient chip evacuation
• Precision h8 diameter tolerance for accurate hole sizing

Technical details

• Diameter: 7.75 mm
• Total length: 117 mm
• Flute length: 75 mm
• Material: High-speed steel (HSS-G)
• Standard: DIN 338
• Point type: Split point (cross ground)
• Point angle: 135°
• Shank type: Cylindrical
• Cutting direction: Right-hand
• Surface finish: Bright
• Tolerance: h8

Our verdict

A professional-grade twist drill bit that combines a self-centering split point with fully ground HSS-G construction for efficient, accurate drilling across common materials.