Broca curta RUKO SPB-DIN1897-HSS-TiN-Ø6,5mm

For machinists and metalworkers who need a short, rigid drill for precise hole positioning, the RUKO SPB-DIN1897-HSS-TiN-Ø6.5mm stub drill bit is a reliable choice. Its compact design reduces deflection, making it ideal for drilling accurate holes in steel, cast iron, non-ferrous metals, and plastics.

Key specifications

• Drill bit type: Stub drill bit
• Standard: DIN 1897
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Diameter: 6.5 mm
• Overall length: 66 mm
• Flute length: 33 mm
• Shank type: Cylindrical
• Point angle: 118°
• Cutting direction: Right-hand cutting
• Tolerance: h8
• Manufacturing process: Ground
• Colour: Gold
• Recommended materials: Steel, cast iron, non-ferrous metals, plastics
• Coating hardness: Approx. 2300 HV
• Max. operating temperature (coating): Up to 600°C

Why choose it

The TiN coating increases surface hardness and reduces friction, extending tool life and improving chip flow. The stub length provides extra rigidity for accurate hole positioning, especially in CNC machines and drilling jigs.

Ideal use cases

• Precision drilling in metalworking shops
• CNC machining centres
• Drilling with jigs and fixtures
• General workshop use on steel and cast iron

Good to know

This drill bit conforms to DIN 1897, which specifies dimensions for stub drills with cylindrical shanks. The h8 tolerance ensures a precise fit in standard drill chucks.