RUKO SPB-DIN1897-HSSCo-Ø3,3mm broca helicoidal extra curta

Precision-ground HSS-Co twist drill bit with 5% cobalt, 3.3 mm diameter, extra short series per DIN 1897, bright finish, 130° point angle, for tough materials up to 1100 N/mm².

Overview

The RUKO SPB-DIN1897-HSSCo-Ø3.3mm is an extra short twist drill bit engineered for high-performance drilling in demanding applications. Its cobalt-alloyed high-speed steel construction provides excellent heat and wear resistance, making it suitable for stainless steel, alloyed and unalloyed steel, cast iron, non-ferrous metals, and plastics.

What stands out

• 5% cobalt HSS-Co for superior hardness and heat resistance
• Extra short design (DIN 1897) for enhanced stability and reduced deflection
• Fully ground with bright finish for precise hole quality
• 130° split point for accurate self-centering and reduced thrust
• h8 shank tolerance for reliable clamping in standard chucks

Technical details

• Drill bit type: Twist drill bit
• Standard: DIN 1897 (extra short series)
• Diameter: 3.3 mm
• Total length: 49 mm
• Cutting length: 18 mm
• Shank type: Cylindrical (parallel)
• Shank diameter: 3.3 mm
• Point angle: 130°
• Flute type: Right-hand cutting
• Surface finish: Bright (uncoated)
• Manufacturing process: Fully ground
• Tolerance: h8
• Recommended material hardness: up to 1100 N/mm²
• Suitable materials: Alloyed and unalloyed steel, cast iron, non-ferrous metals, plastics, stainless steel

Our verdict

A reliable, high-performance drill bit for precise holes in tough materials, ideal for professional use where accuracy and durability are critical.