RUKO 1000022396 HSS-TiN Twist Drill Bit 8.5 mm DIN 338

Drilling precise holes in steel, cast iron, non-ferrous metals, and plastics requires a bit that stays sharp and resists wear. The RUKO SPB-DIN338-HSS-TiN twist drill bit with 8.5 mm diameter meets this need with a titanium nitride coating that reduces friction and extends tool life.

Who is it for

Professional metalworkers, machinists, and serious DIYers who need reliable, accurate drilling in a range of materials. It is ideal for general-purpose drilling tasks in workshops and on-site.

Main features

• High-speed steel (HSS) body with gold titanium nitride (TiN) coating for improved hardness and heat resistance.
• DIN 338 standard dimensions: 117 mm total length, 75 mm working length.
• Precision ground from solid for accurate hole sizing with h8 tolerance.
• 118° point angle and right-hand cutting direction for efficient chip removal.
• Cylindrical shank with 8.5 mm diameter fits standard drill chucks.

Specifications

• Drill bit type: Twist drill bit
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Diameter: 8.5 mm
• Shank type: Cylindrical
• Shank diameter: 8.5 mm
• Point angle: 118°
• Cutting direction: Right-hand cut
• Flute type: Standard helix
• Tolerance: h8
• Total length: 117 mm
• Working length: 75 mm
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics
• Manufacturing process: Ground from solid
• Colour: Gold

Tips

Use a cutting fluid when drilling steel to prolong bit life. For best results, start with a centre punch to prevent wandering. Store in a dry place to protect the TiN coating.