RUKO SPB-DIN338-HSS-TiN Twist Drill Bit 11.3 mm

Professional machinists and metalworkers rely on the RUKO SPB-DIN338-HSS-TiN twist drill bit for precise, efficient drilling in steel, cast iron, non-ferrous metals, and plastics. Its 11.3 mm diameter and TiN coating deliver clean holes and extended tool life in demanding workshop environments.

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Diameter: 11.3 mm
• Overall length: 143 mm
• Working length: 101 mm
• Shank type: Cylindrical (straight shank)
• Shank diameter: 11.3 mm
• Point angle: 118°
• Cutting direction: Right-hand cutting
• Tolerance: h8
• Manufacturing process: Fully ground
• Surface finish: TiN coated (golden)
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics
• Application: General purpose drilling
• Heat resistance (coating): Up to 600°C
• Hardness (coating): Approx. 2300 HV
• Friction coefficient (coating): 0.4

Why choose it

The TiN coating reduces friction and heat buildup, allowing higher cutting speeds and longer intervals between regrinds. Fully ground flutes ensure accurate hole sizing and smooth chip evacuation, while the h8 tolerance guarantees consistent performance.

Ideal use cases

• Drilling steel and cast iron components in machine shops
• Creating precise holes in non-ferrous metals like aluminum and brass
• General maintenance and repair tasks on plastic parts
• Production drilling where tool life and hole quality are critical

Good to know

This drill bit conforms to DIN 338, the German standard for short series twist drills, ensuring compatibility with standard drill chucks and collets. The golden TiN coating is a visual indicator of its enhanced wear resistance.