RUKO ERB-HSSCo špirálový vrták 8,0 mm DIN 338 HSS-Co brúsený krížový zábrus 135°

Precision-ground from HSS-Co cobalt alloy, this 8.0 mm twist drill bit delivers a 135° split point that self-centers and cuts with low pressure. It handles steel up to 1100 N/mm², stainless steel, cast iron, non-ferrous metals, and plastics.

Overview

The RUKO ERB-HSSCo is a DIN 338 standard twist drill bit with a cylindrical shank and spiral flutes. Its bright, uncoated finish and h8 tolerance ensure consistent hole quality in general-purpose drilling tasks.

What stands out

• 135° split point for fast, self-centering starts without walking
• High-speed steel with cobalt for heat resistance and long life
• Ground manufacturing process for precise cutting edges
• Right-hand cutting direction for standard drilling

Technical details

• Diameter: 8.0 mm
• Total length: 117 mm
• Working length: 75 mm
• Material: HSS-Co
• Point angle: 135°
• Shank: Cylindrical
• Tolerance: h8

Our verdict

A reliable cobalt steel drill bit for demanding materials, offering precision and durability in a standard DIN 338 size.