RUKO SPB-DIN338-8.3mm-HSSCo Twist Drill Bit

Precision-ground HSS-Co twist drill bit with 8.3 mm diameter and 130° split point for accurate centering and reduced thrust. Ideal for stainless steel, alloyed steel, and cast iron.

Overview

The RUKO SPB-DIN338-8.3mm-HSSCo is a fully ground twist drill bit manufactured from high-speed steel with cobalt (HSS-Co). It conforms to DIN 338 and features a cylindrical shank with h8 tolerance. The bright surface finish reduces friction and improves chip evacuation.

What stands out

• Split point (cross-ground) tip for precise drilling without center punch
• 130° point angle optimized for hard materials
• Fully ground flutes for excellent concentricity and smooth chip flow
• HSS-Co material withstands high temperatures and extends tool life

Technical details

• Diameter: 8.3 mm
• Total length: 117 mm
• Working length (flute length): 75 mm
• Shank diameter: 8.3 mm
• Point angle: 130°
• Point grind: Split point
• Surface finish: Bright
• Tolerance: h8
• Manufacturing process: Fully ground
• Suitable materials: Stainless steel, alloyed steel, non-alloyed steel, cast iron, non-ferrous metals, plastics

Our verdict

A professional-grade cobalt drill bit that delivers clean, accurate holes in tough materials. Its split point and precise grinding reduce walking and breakage, making it a reliable choice for demanding workshops.