RUKO KEB-HSS-TiAlN Twist Drill Bit 25.0 mm DIN 338

Drilling large-diameter holes in tough materials like stainless steel or alloyed steel demands a drill bit that resists heat and wear. The RUKO KEB-HSS-TiAlN Ø25.0 mm twist drill bit solves this with a cobalt-alloyed high-speed steel body and a TiAlN coating, delivering high heat resistance and very high wear resistance for industrial and professional use.

Who is it for

This drill bit is built for machinists, metalworkers, and maintenance professionals who regularly drill into alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals, and plastics. It is suitable for both industrial and professional applications where precision and tool life are critical.

Main features

• TiAlN coating for high heat resistance and very high wear resistance
• HSS-E-Co5 (5% cobalt) high-speed steel for toughness
• 130° point angle for efficient cutting
• Ground from solid for accuracy
• DIN 338 standard dimensions

Specifications

• Drill bit type: Twist drill bit
• Diameter: 25.0 mm
• Standard: DIN 338
• Material: HSS-E-Co5 (5% cobalt high-speed steel)
• Coating: TiAlN
• Shank type: Cylindrical
• Point angle: 130°
• Cutting direction: Right hand cut
• Tolerance: h8
• Overall length: 261 mm
• Flute length: 165 mm
• Manufacturing process: Ground from solid
• Core thickness: Normal
• Web taper: Normal
• Heat resistance: High
• Wear resistance: Very high

Tips

Use a suitable cutting fluid when drilling stainless steel to extend tool life. Ensure the drill is securely clamped and the workpiece is stable to handle the high torque of a 25 mm bit.