RUKO BSB-HSSCo-5,0-31,0mm HSS-Co 5% Cobalt Spiral Drill Bit 5.0 mm DIN 338

Drilling into stainless steel, acid-resistant steel, or heat-resistant alloys quickly dulls ordinary drill bits. The RUKO BSB-HSSCo-5,0-31,0mm solves that problem with a high-speed steel body enriched with 5% cobalt, delivering the heat and wear resistance needed for tough materials.

Who is it for

Professional machinists, metalworkers, and serious DIYers who regularly drill high-alloy steels, cast iron, bronze, and non-ferrous metals. It works in hand drills and pillar drills.

Main features

• 5% cobalt HSS-Co for high heat resistance and long life
• Ground from solid to DIN 338, type N spiral flute
• 135° split point for accurate starting without walking
• Cylindrical shank, right-hand cut
• Bright finish

Specifications

• Drill bit type: Twist drill bit (spiral cutting drill bit)
• Diameter: 5.0 mm
• Total length: 86 mm
• Flute length: 52 mm
• Shank diameter: 5.0 mm
• Point angle: 135°
• Point grind: Split point
• Helix angle: Normal (Type N)
• Material: HSS-Co (5% cobalt)
• Standard: DIN 338
• Manufacturing process: Ground from solid
• Surface finish: Bright
• Direction of cut: Right-hand
• Suitable for: Stainless steel, acid-resistant steel, heat-resistant steel, high-alloy steels, cast iron, bronze, non-ferrous metals, plastics

Tips

Use cutting fluid when drilling stainless or high-alloy steels to extend bit life. For precise holes, start with a center punch or pilot drill.