RUKO STB-HSS-TiN 6.0 x 38 mm Twist Drill Bit

Drilling precise holes in tough materials like steel or cast iron demands a bit that stays sharp and resists heat. The RUKO STB-HSS-TiN twist drill bit is ground from solid high-speed steel and coated with titanium nitride, giving it a hard, gold surface that reduces friction and withstands temperatures up to 600°C.

Who is it for

This bit suits metalworkers, machinists, and serious DIYers who need reliable performance in steel, cast iron, non-ferrous metals, and plastics. It works in drill presses and handheld drills with a cylindrical shank.

Main features

• 6.0 mm diameter with 38 mm flute length, 69 mm total length
• TiN (titanium nitride) coating for wear resistance and reduced friction
• DIN 338 standard, right-hand cutting, 118° conical point
• Ground from solid HSS for high core strength and accuracy

Specifications

• Drill bit type: twist drill bit
• Material: high-speed steel (HSS)
• Coating: titanium nitride (TiN)
• Diameter: 6.0 mm
• Total length: 69 mm
• Working length (flute length): 38 mm
• Shank type: cylindrical
• Point angle: 118°
• Point grind: conical
• Cutting direction: right-hand
• Suitable materials: steel, cast iron, non-ferrous metals, plastics
• Colour: gold

Tips

Use cutting fluid or coolant when drilling steel to extend bit life. For best results, start with a centre punch to prevent walking, and reduce speed when drilling harder materials.