RUKO DOB-HSS-5,0mm broca helicoidal polida, DIN 338, polida

The RUKO DOB-HSS-5.0mm blank twist drill bit is a precision-ground jobber drill made from high-speed steel, offering reliable performance for general-purpose drilling in steel, cast iron, non-ferrous metals, and plastics. Its 118° conical point and h8 tolerance ensure accurate starting and consistent hole quality, while the bright, uncoated finish reduces chip adhesion in softer materials.

Highlights

• High-speed steel (HSS) construction for durability and heat resistance
• 5.0 mm diameter with cylindrical shank, suitable for standard drill chucks
• DIN 338 jobber length: 86 mm overall, 52 mm flute length for deep chip evacuation
• Right-hand cutting with two flutes and ground flutes for smooth cutting action
• Bright finish without coating, ideal for general workshop use

In daily use

This drill bit delivers clean, accurate holes in a wide range of materials. The 118° point angle is a proven all-round geometry that centers well and reduces walking. The h8 shank tolerance guarantees a secure grip in keyless and keyed chucks, minimizing slippage during drilling. Whether you're working on mild steel, aluminum, or plastic, this bit provides consistent results with minimal effort.

Full specifications

• Material: High-Speed Steel (HSS)
• Drill Bit Type: Jobber Drill
• Diameter: 5.0 mm
• Shank Type: Cylindrical
• Point Angle: 118°
• Standard: DIN 338
• Finish: Bright (Uncoated)
• Cutting Direction: Right Hand Cut
• Overall Length: 86 mm
• Flute Length: 52 mm
• Manufacturing Process: Ground Flute
• Application Suitability: General purpose drilling in steel, cast iron, non-ferrous metals, plastics
• Tolerance: h8
• Series: A002
• Number of Flutes: 2
• Point Grind Type: Conical

Final note

RUKO's DOB-HSS series is a dependable choice for professionals and DIY enthusiasts who need a sharp, long-lasting drill bit for everyday tasks. The bright finish and precision grinding ensure consistent performance without the premium of coated bits.