Broca helicoidal HSS-Co RUKO LOS-HSSCo-105mm 10,5 mm DIN 338

For machinists and metalworkers who need a reliable drill bit for tough materials, the RUKO LOS-HSSCo-105mm is a high-speed steel cobalt twist drill bit with a 10.5 mm diameter. It is fully ground from HSS-Co5 with a 135° split point for self-centering and reduced walking. Suitable for stainless steel, alloyed steel, cast iron, non-ferrous metals, and plastics in hand drills, pillar drills, and machining centers.

Key specifications

• Drill diameter: 10.5 mm
• Material: HSS-Co (5% cobalt)
• Point angle: 135° split point
• Shank type: cylindrical
• Overall length: 133 mm
• Flute length: 87 mm
• Cutting direction: right-hand
• Standard: DIN 338

Why choose it

The cobalt alloy provides high heat and wear resistance, extending tool life in demanding applications. The split point eliminates the need for center punching and ensures accurate hole positioning.

Ideal use cases

• Drilling stainless steel and alloyed steel
• Precision work in machining centers
• Repair and maintenance tasks on metal components
• General workshop use on cast iron and non-ferrous metals

Good to know

Fully ground flutes and bright finish reduce friction and improve chip evacuation. The cylindrical shank fits standard drill chucks.