RUKO SPB-DIN338-HSS-TiN-Ø7,5mm σπειροειδές τρυπάνι

Twist drill bit with a 7.5 mm diameter, precision ground from solid high-speed steel (HSS) and coated with titanium nitride (TiN) for exceptional wear resistance and heat resistance up to 600°C. The TiN coating reduces friction, allowing higher cutting speeds and longer tool life compared to uncoated HSS drills.

Advantages

The gold TiN coating provides a hard surface (approx. 2300 HV) that improves chip flow and prevents built-up edge, resulting in cleaner holes and reduced cutting forces. The cylindrical shank fits standard drill chucks, and the 118° point angle ensures accurate self-centering and efficient material removal.

Suitable for

• Alloyed and unalloyed steel
• Cast iron
• Malleable cast iron
• Non-ferrous metals
• Plastics

Key specifications

• Diameter: 7.5 mm
• Total length: 109 mm
• Working length: 69 mm
• Shank type: cylindrical
• Shank diameter: 7.5 mm
• Point angle: 118°
• Tolerance: h8
• Cutting direction: right-hand
• Manufacturing process: ground from solid
• Flute type: standard spiral
• Coating: TiN
• Color: gold

Recommendations

For best results, use with cutting fluid on steel and reduce speed when drilling hard materials. Suitable for general purpose drilling in workshops and industry.