RUKO HSS-G spiraalboor 7,1 mm DIN 338 kruisslijping 135°

Precision-ground 7.1 mm HSS twist drill bit with 135° split point for fast, accurate drilling without center punch.

Overview

This RUKO twist drill bit is manufactured from high-speed steel (HSS-G) and ground from solid to DIN 338 standards. The 135° split point (Kreuzanschliff) ensures excellent self-centering and reduces walking on the workpiece, while the bright uncoated finish provides clean chip evacuation in a wide range of materials.

What stands out

• 135° split point for precise starting without a center punch
• Ground from solid HSS-G for high durability and concentricity
• DIN 338 standard dimensions: 109 mm total length, 69 mm flute length
• Suitable for steel, cast iron, non-ferrous metals, plastics and wood

Technical details

• Diameter: 7.1 mm
• Shank: cylindrical, 7.1 mm
• Point angle: 135°
• Flute length: 69 mm
• Total length: 109 mm
• Material: HSS-G (bright finish)
• Standard: DIN 338
• Cutting direction: right-hand
• Tolerance: h8
• Max. material hardness: 900 N/mm²

Our verdict

A professional-grade general-purpose drill bit that delivers accurate holes and long service life across common materials.