RUKO SPB-DIN1897-HSSCo-Ø7,0mm broca helicoidal

For machinists and metalworkers drilling stainless steel or alloyed steel, this RUKO twist drill bit delivers reliable performance in demanding materials. The 7.0 mm diameter and short series design suit workshop tasks where precision and durability matter.

Key specifications

• Drill bit type: Twist drill bit
• Standard: DIN 1897 (short series)
• Material: HSS-Co (high-speed steel with 5% cobalt)
• Diameter: 7.0 mm
• Overall length: 69 mm
• Flute length: 39 mm
• Shank type: Cylindrical (parallel shank)
• Point angle: 130°
• Cutting direction: Right-hand cutting
• Surface finish: Bright
• Tolerance: h8
• Manufacturing process: Fully ground

Why choose it

The cobalt alloyed HSS provides high heat and wear resistance, allowing the bit to maintain sharpness when drilling harder steels. The 130° point angle centers well and reduces walking, while the bright finish ensures smooth chip evacuation.

Ideal use cases

• Drilling stainless steel and alloyed steel
• General purpose drilling in cast steel, grey cast iron, and malleable cast iron
• Working with non-ferrous metals and plastics

Good to know

Fully ground from HSS-Co, this bit meets DIN 1897 short series dimensions. The cylindrical shank fits standard drill chucks. Suitable for right-hand rotation only.