RUKO DOB-HSS-4,8 mm spiraalboor blank DIN 338

For machinists and metalworking professionals, the RUKO DOB-HSS-4.8mm bright twist drill bit delivers precise holes in steel, cast iron, non-ferrous metals, and plastics. Its fully ground high-speed steel body and 118° point angle provide reliable cutting performance in general-purpose drilling tasks.

Key specifications

• Diameter: 4.8 mm
• Overall length: 86 mm
• Flute length: 52 mm
• Material: High-speed steel (HSS)
• Finish: Bright (uncoated)
• Point angle: 118°
• Shank type: Cylindrical
• Cutting direction: Right hand
• Standard: DIN 338
• Tolerance: h8
• Number of flutes: 2
• Manufacturing process: Fully ground

Why choose it

This jobber drill bit is manufactured to DIN 338, ensuring consistent quality and dimensional accuracy. The bright finish reduces friction and helps clear chips efficiently, while the fully ground flutes provide smooth cutting action and longer tool life.

Ideal use cases

• Drilling precise holes in steel and cast iron components
• Creating holes in non-ferrous metals such as aluminium and brass
• Working with plastics in fabrication and repair tasks

Good to know

The cylindrical shank fits standard drill chucks, and the right-hand cutting direction is compatible with most drilling machines and hand drills. The h8 tolerance ensures a consistent diameter for reliable hole sizing.