RUKO LOS-HSSCo-108mm HSS-Co Twist Drill Bit 6.5mm DIN 338 Split Point

Drilling into stainless steel and alloyed steel demands a bit that resists heat and wear without wandering off the mark. The RUKO LOS-HSSCo-108mm twist drill bit is engineered for exactly that: a 5% cobalt-alloyed HSS body that holds its edge at high temperatures, paired with a 135° split point that starts on contact without a centre punch.

Who is it for

This bit suits metalworkers, maintenance technicians, and serious DIYers who regularly drill stainless steel, alloyed steel, cast iron, non-ferrous metals, and plastics. If you need clean, accurate holes in tough materials, this is the tool for the job.

Main features

• HSS-Co (5% cobalt) for high heat and wear resistance
• 135° split point for self-centering and reduced walking
• DIN 338 standard dimensions: 6.5 mm diameter, 108 mm total length, 69 mm flute length
• Cylindrical shank with 6.5 mm diameter for secure chuck grip
• Right-hand cutting direction for standard drilling
• Bright/bronze surface finish typical of cobalt-alloyed steel

Specifications

• Drill bit type: Twist drill bit
• Material: HSS-Co (high-speed steel with cobalt)
• Cobalt content: 5%
• Diameter: 6.5 mm
• Total length: 108 mm
• Working length (flute length): 69 mm
• Shank type: Cylindrical
• Shank diameter: 6.5 mm
• Point angle: 135°
• Cutting edge: Split point (self-centering)
• Standard: DIN 338
• Surface finish: Bright / Bronze
• Application materials: Stainless steel, alloyed steel, cast iron, non-ferrous metals, plastics
• Cutting direction: Right-hand cutting
• Number of pieces: 1

Tips

Use cutting fluid when drilling stainless steel to extend bit life. For best results, start at a moderate speed and increase only if the bit cuts smoothly.