RUKO SPB-DIN338-HSS-TiN Twist Drill Bit Ø 9.3 mm

For machinists and metalworkers who need a dependable twist drill for everyday drilling in steel, cast iron, and non-ferrous metals, this RUKO SPB-DIN338-HSS-TiN drill bit delivers precision and durability. The 9.3 mm diameter and DIN 338 geometry make it suitable for general-purpose drilling in workshops and production environments.

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Diameter: 9.3 mm
• Total length: 125 mm
• Working length: 81 mm
• Shank type: Cylindrical
• Shank diameter: 9.3 mm
• Point angle: 118°
• Cutting direction: Right-hand cutting
• Tolerance: h8
• Manufacturing process: Ground from solid
• Surface hardness: Approx. 2300 HV
• Heat resistance: Up to 600°C

Why choose it

The TiN coating reduces friction and increases wear resistance, extending tool life compared to uncoated HSS drills. The precise h8 shank tolerance ensures a secure fit in standard drill chucks, while the 118° point angle provides good centering and cutting performance across a range of materials.

Ideal use cases

• Drilling alloyed and unalloyed steel
• Drilling grey cast iron and malleable cast iron
• Drilling non-ferrous metals such as aluminium and copper
• Drilling plastics

Good to know

The drill bit is ground from solid HSS and coated with TiN, giving it a characteristic gold colour. It is suitable for use with stationary drilling machines and hand-held drills with adequate power.