RUKO SPB-DIN1897-HSSCo-Ø4,0mm broca helicoidal extra curta

Precision-engineered from HSS-Co with 5% cobalt, this extra short twist drill bit delivers high heat resistance and wear resistance for demanding industrial applications.

Overview

The RUKO SPB-DIN1897-HSSCo-Ø4.0mm is a fully ground, right-hand cutting drill bit with a 135° split point, designed for accurate centering and reduced thrust. Its extra short length (43 mm total, 18 mm flute) provides maximum stability in confined spaces.

What stands out

• DIN 1897 standard extra short design for high rigidity
• HSS-Co with 5% cobalt for superior hardness and heat resistance
• 135° split point eliminates walking and enables self-centering
• Cylindrical shank with h8 tolerance for precise chuck fit
• Suitable for alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals, and plastics

Technical details

• Diameter: 4.0 mm
• Total length: 43 mm
• Flute length: 18 mm
• Point angle: 135°
• Number of flutes: 2
• Shank type: Cylindrical
• Surface finish: Bright
• Manufacturing process: Fully ground
• Tolerance: h8

Our verdict

A robust choice for high-tensile materials and tight workspaces, offering precision and durability in a compact form.