RUKO SPB-Set 19-Piece HSS TiAlN TL3000 Twist Drill Bit Set

Drilling through tough materials like stainless steel or cast iron can quickly dull standard bits, causing frustration and wasted effort. This 19-piece twist drill bit set from RUKO solves that problem with a TiAlN coating that reduces friction and heat, extending bit life and improving performance in demanding applications.

Who is it for

Professional metalworkers, maintenance technicians, and serious DIYers who need reliable, long-lasting drill bits for hard metals and dry machining.

Main features

• 19 metric sizes from 1.0 mm to 10.0 mm in 0.5 mm increments, covering most common drilling needs.
• High-speed steel (HSS) body with titanium aluminum nitride (TiAlN) coating for high hardness and heat resistance.
• 135° split point (DIN 1412 C) for accurate starting without center punching and reduced walking.
• Cylindrical shank with h8 tolerance for secure chuck grip and minimal runout.
• Right-hand cutting with standard spiral flute for efficient chip removal.
• Supplied in a robust plastic cassette for organized storage and easy size identification.

Specifications

• Set type: Twist drill bit set
• Number of pieces: 19
• Material: High-speed steel (HSS)
• Coating: Titanium aluminum nitride (TiAlN), TL 3000 series
• Drill bit sizes: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0 mm
• Shank type: Cylindrical
• Point angle: 135°
• Point type: Split point (DIN 1412 C)
• Manufacturing standard: DIN 338
• Tolerance: h8
• Application materials: Steel, stainless steel, cast iron, non-ferrous metals, plastics
• Recommended use: General purpose drilling, especially in harder materials and for dry machining
• Packaging: Robust plastic cassette
• Cutting direction: Right-hand cutting
• Flute type: Standard spiral flute

Tips

For best results, use cutting fluid when drilling stainless steel, and reduce speed for larger diameters to prevent overheating.