RUKO SPB-DIN338-HSSCo8-TiAlN-Ø2,2mm kierrepora

Precision drilling in tough materials demands a bit that stays sharp and resists heat. The RUKO SPB-DIN338-HSSCo8-TiAlN-Ø2.2mm twist drill bit is built for machinists and metalworkers who regularly bore into high-alloy steels, stainless steels, heat-resistant steels, titanium alloys, and cast iron. Its 2.2 mm diameter and DIN 338 standard geometry make it a dependable choice for accurate, clean holes in demanding workshop environments.

Key specifications

• Diameter: 2.2 mm
• Total length: 49 mm
• Working length: 24 mm
• Material: HSS-Co 8% (high-speed steel with 8% cobalt)
• Coating: TiAlN (titanium aluminum nitride)
• Point angle: 130°
• Shank type: cylindrical
• Cutting direction: right-hand
• Tolerance: h8
• Standard: DIN 338
• Manufacturing method: ground from solid
• Heat resistance: very high
• Wear resistance: excellent
• Colour: bronze/grey
• Packaging unit: 1 piece

Why choose it

The 8% cobalt content boosts hardness and heat resistance, allowing the bit to maintain its cutting edge at elevated temperatures. The TiAlN coating further reduces friction and wear, extending tool life even in abrasive materials. Ground from solid, the drill delivers precise concentricity and consistent performance.

Ideal use cases

• Drilling high-alloy and stainless steels
• Working with heat-resistant steels and titanium alloys
• Precision hole-making in cast iron
• General metalworking in machine shops and fabrication

Good to know

The cylindrical shank fits standard drill chucks, and the right-hand cutting direction suits conventional drilling machines and hand drills. The DIN 338 standard ensures compatibility with common tooling and predictable geometry.