RUKO SPB-DIN1897-HSSCo-Ø9,0mm broca helicoidal curta, HSS-Co 5%, 9,0 mm

Short series twist drill bit with 9.0 mm diameter, made from high-speed steel with 5% cobalt for superior heat resistance and durability. The split point tip ensures precise centering and reduces walking, while the fully ground flutes provide excellent chip removal. Ideal for drilling alloyed and unalloyed steels, stainless steel, cast iron, non-ferrous metals, and plastics.

Advantages

HSS-Co 5% cobalt alloy offers high heat resistance and extended tool life, especially in tough materials. The 130° split point eliminates the need for center punching and delivers accurate hole positioning. Bright finish and fully ground construction ensure smooth cutting and consistent performance.

Suitable for

• Alloyed and unalloyed steels
• Stainless steel
• Cast iron
• Non-ferrous metals
• Plastics

Key specifications

• Diameter: 9.0 mm
• Overall length: 81 mm
• Working length: 49 mm
• Material: HSS-Co (5% cobalt)
• Point angle: 130°
• Shank: Cylindrical, h8 tolerance
• Standard: DIN 1897

Recommendations

For best results, use with cutting fluid when drilling stainless steel or cast iron. Maintain moderate speed and feed to maximize bit life.