RUKO SPB-DIN1897-HSSCo-Ø4,5mm Broca helicoidal HSS-Co, 4,5 mm, DIN 1897 curta, Afiação em cruz, blank

The RUKO SPB-DIN1897-HSSCo-Ø4.5mm is a precision-ground twist drill bit engineered for demanding metalworking tasks. Its 5% cobalt high-speed steel construction and 135° split point set it apart from standard HSS bits, offering superior heat resistance and self-centering accuracy without the need for center punching.

Highlights

• 5% cobalt HSS-Co steel for high heat resistance and extended tool life
• 135° split point for self-centering and reduced walking on hard materials
• DIN 1897 short series design for increased rigidity and precision
• Bright finish with fully ground flutes for smooth chip evacuation
• h8 tolerance for consistent hole quality

In daily use

This drill bit excels in high-alloy steels, stainless steel, cast iron, and non-ferrous metals. Its short overall length (47 mm) and working length (20 mm) provide excellent stability, making it ideal for precision drilling in tight spaces or on machine tools. Use with cutting fluid for optimal performance and tool life.

Full specifications

• Drill Bit Type: Twist Drill Bit
• Standard: DIN 1897 (Short Series)
• Material: HSS-Co (5% Cobalt)
• Diameter: 4.5 mm
• Total Length: 47 mm
• Working Length: 20 mm
• Shank Type: Cylindrical, 4.5 mm diameter
• Point Angle: 135° (Split Point)
• Cutting Direction: Right-Hand
• Surface Finish: Bright (Uncoated)
• Tolerance: h8
• Application Materials: High-alloy steels, stainless steel, cast iron, bronze, hard plastics, non-ferrous metals

Final note

For professionals who demand precision and durability in metal drilling, the RUKO SPB-DIN1897-HSSCo-Ø4.5mm delivers consistent performance in a compact, rigid design.