Broca helicoidal RUKO SPB-DIN338-HSSCo8-Ø9,6mm

For machinists and metalworkers drilling high-alloy steels and stainless steel, this RUKO twist drill bit delivers reliable performance in demanding applications. The 9.6 mm diameter bit is made from HSS-Co8, a high-speed steel with 8% cobalt, providing excellent heat resistance and durability. Its 135° split point ensures accurate centering and reduces walking, while the fully ground flutes offer efficient chip removal. Conforming to DIN 338, it features a cylindrical shank and a flute length of 87 mm, with an overall length of 125 mm.

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co8 (high-speed steel with 8% cobalt)
• Diameter: 9.6 mm
• Shank type: Cylindrical
• Shank diameter: 9.6 mm
• Overall length: 125 mm
• Flute length: 87 mm
• Point angle: 135°
• Point grind: Split point
• Coating: Uncoated
• Manufacturing process: Fully ground
• Tolerance: h8
• Direction of cut: Right-hand
• Recommended applications: High-alloy steels, stainless steel, acid and heat-resistant steels, cast iron, bronze

Why choose it

The cobalt alloyed steel withstands high temperatures, making this bit ideal for continuous drilling in tough materials. The split point design provides self-centering and reduces the need for a center punch, while the fully ground flutes ensure smooth chip evacuation and precise hole quality.

Ideal use cases

• Drilling stainless steel components in fabrication shops
• Creating holes in high-alloy steel for machinery repair
• Working with cast iron and bronze in maintenance tasks

Good to know

This drill bit is supplied as a single piece and is suitable for use with stationary drilling machines and powerful hand drills. The h8 tolerance ensures a precise fit in standard drill chucks.