RUKO LOS-HSSCo-38 mm HSS-Co kierreporanterä 3,8 mm DIN 338

Precision-ground from high-speed steel with 5% cobalt, this RUKO twist drill bit delivers extreme heat resistance and wear resistance for demanding drilling tasks in tough materials.

Overview

The RUKO LOS-HSSCo-38mm is a fully ground twist drill bit with a 3.8 mm diameter, cylindrical straight shank, and 135° point angle, manufactured to DIN 338 standards. Its bright, uncoated surface and right-hand cutting direction ensure clean, accurate holes.

What stands out

• High-speed steel with 5% cobalt for very high heat resistance
• Excellent wear resistance and good chip evacuation
• Suitable for hand drills, pillar drills, and drilling machines
• Recommended for steel, stainless steel, cast iron, non-ferrous metals, and plastics

Technical details

• Material: High-Speed Steel Cobalt (HSS-Co), 5% cobalt
• Diameter: 3.8 mm, tolerance h8
• Overall length: 75 mm, flute length: 43 mm
• Point angle: 135°, right-hand cut
• Shank type: cylindrical (straight)
• Standard: DIN 338
• Manufacturing process: fully ground
• Surface finish: bright (uncoated)

Our verdict

A professional-grade cobalt drill bit that excels in hard metals, offering long service life and precision.