RUKO SPB-DIN338-HSS-TiN-Ø7,3mm σπειροειδές τρυπάνι

With a 7.3 mm diameter and TiN coating, this RUKO twist drill bit delivers high-performance drilling in steel, cast iron, and non-ferrous metals. The titanium nitride coating provides a hard surface (approx. 2300 HV) that reduces friction and extends tool life, even at temperatures up to 600°C.

Overview

The RUKO SPB-DIN338-HSS-TiN-Ø7.3mm is a precision-ground twist drill bit manufactured from high-speed steel (HSS) and coated with titanium nitride (TiN). It conforms to DIN 338, ensuring standard dimensions and compatibility with standard drill chucks. The cylindrical shank and right-hand spiral flute make it suitable for general-purpose drilling in a wide range of materials.

What stands out

• TiN coating for increased wear resistance and reduced friction
• Ground from solid for high accuracy and concentricity
• 118° point angle for efficient cutting in metal
• h8 shank tolerance for secure chuck grip

Technical details

• Drill bit type: Twist drill bit
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Standard: DIN 338
• Diameter: 7.3 mm
• Overall length: 109 mm
• Flute length: 69 mm
• Shank type: Cylindrical
• Point angle: 118°
• Flute type: Right-hand spiral
• Tolerance: h8
• Coating hardness: approx. 2300 HV
• Max. operating temperature (coating): up to 600°C
• Manufacturing process: Ground from solid
• Colour: Gold
• Packaging quantity: 1 piece

Our verdict

A reliable, general-purpose twist drill bit with a durable TiN coating, ideal for drilling in alloyed and unalloyed steel, cast iron, non-ferrous metals, plastics, and wood.