Broca helicoidal RUKO SPB-DIN338-HSSCo8-TiAlN-Ø6,6mm

Drilling into high-alloy steels, stainless steel, titanium alloys, and heat-resistant steels demands a drill bit that stays sharp and resists wear. The RUKO SPB-DIN338-HSSCo8-TiAlN-Ø6.6mm twist drill bit is built from HSS-Co8 cobalt steel with a TiAlN coating, delivering high heat resistance and extended tool life in demanding materials.

Who is it for

Machinists, metalworkers, and serious DIYers who need a reliable 6.6 mm drill bit for tough metals. It suits professional workshops and advanced home use where precision and durability matter.

Main features

• HSS-Co8 high-speed steel with 8% cobalt for high hardness and heat resistance
• TiAlN coating reduces friction and improves wear resistance
• 135° split point for accurate centering and reduced walking
• Fully ground flutes for smooth chip evacuation
• DIN 338 standard dimensions: 109 mm overall length, 69 mm flute length
• Cylindrical shank with h8 tolerance fits standard drill chucks

Specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co8
• Coating: TiAlN
• Diameter: 6.6 mm
• Overall length: 109 mm
• Flute length: 69 mm
• Shank type: Cylindrical
• Shank diameter: 6.6 mm
• Point angle: 135°
• Cutting direction: Right-hand
• Tolerance: h8
• Manufacturing process: Fully ground
• Application materials: High-alloy steels, stainless steel, cast iron, titanium alloys, heat-resistant steels
• Heat resistance: Very high
• Wear resistance: Very high
• Packaging quantity: 1 piece

Tips

Use cutting fluid or coolant when drilling stainless steel or titanium to maximize tool life. Ensure the workpiece is securely clamped and the drill is held at a right angle to the surface.