RUKO SPB-DIN338-9/32-HSSCo kierreporanterä 7,14 mm HSS-Co DIN 338

For machinists and metalworkers drilling stainless steel, alloyed steel, or cast iron, the RUKO SPB-DIN338-9/32-HSSCo twist drill bit delivers precise holes with a 135° split point that self-centers and reduces walking. Its HSS-Co (5% cobalt) construction withstands high heat, making it suitable for demanding production environments.

Key specifications

• Diameter: 9/32 inch (7.14 mm)
• Standard: DIN 338
• Material: HSS-Co (5% cobalt)
• Point angle: 135° split point
• Overall length: 109 mm
• Flute length: 69 mm
• Shank: cylindrical, 7.14 mm diameter
• Tolerance: h8
• Surface finish: bright/polished
• Manufacturing: fully ground from solid

Why choose it

Fully ground flutes ensure excellent chip removal and high wear resistance. The cobalt alloy maintains hardness at elevated temperatures, extending tool life when drilling tough materials.

Ideal use cases

• Drilling stainless steel and alloyed steel
• Working with cast iron and non-ferrous metals
• Precision drilling in plastics

Good to know

Supplied as a single drill bit. Right-hand cutting direction. Suitable for use in stationary drilling machines and hand drills with appropriate chuck capacity.