RUKO SPB-DIN1897-HSSCo-Ø8,5mm broca helicoidal curta HSS-Co

Drilling into tough alloyed steel or stainless steel quickly dulls standard drill bits, causing wandering holes and burnt cutting edges. The RUKO SPB-DIN1897-HSSCo-Ø8.5mm solves this with a cobalt-alloyed high-speed steel body that retains hardness at elevated temperatures, so you can work faster and longer without constant bit changes.

Who is it for

Metalworkers, maintenance technicians and demanding DIYers who drill alloyed steel, stainless steel, cast iron, non-ferrous metals or plastics and need a short, rigid bit that starts on point and stays accurate.

Main features

• DIN 1897 short series for maximum rigidity and reduced deflection
• HSS-Co with 5% cobalt for high heat resistance and durability
• 135° split point self-centres and reduces walking on contact
• Ground from solid with bright finish for precise, clean holes
• Right-hand cutting, h8 shank tolerance for standard chucks

Specifications

• Drill bit type: Twist drill bit
• Standard: DIN 1897
• Material: HSS-Co (5% cobalt)
• Diameter: 8.5 mm
• Shank type: Cylindrical
• Shank diameter: 8.5 mm
• Total length: 79 mm
• Flute length: 47 mm
• Point angle: 135°
• Point type: Split point
• Manufacturing process: Ground from solid
• Surface finish: Bright
• Series: Short series
• Direction of cut: Right-hand
• Tolerance: h8
• Suitable materials: Alloyed and unalloyed steel, stainless steel, cast iron, non-ferrous metals, plastics
• Packaging quantity: 1 piece

Tips

Use a cutting fluid or lubricant when drilling stainless steel or alloyed steel to extend tool life. For best results, pre-punch or centre-punch the hole location to aid the split point in starting accurately.