Broca helicoidal HSS-G RUKO SPB-DIN1897-9,0 mm curta 9 mm

This RUKO stub drill bit is ground from solid HSS-G high-speed steel to DIN 1897, giving a short, rigid flute for precise hole positioning and reduced deflection in hand drills, pillar drills, and automatic machines. The 9.0 mm diameter with h8 tolerance and 118° point angle suits steel, cast iron, non-ferrous metals, plastics, and wood up to 900 N/mm².

Highlights

• Short design per DIN 1897 for stable drilling and accurate holes
• Ground from solid HSS-G for long cutting life and consistent performance
• Cylindrical shank fits standard drill chucks
• Bright finish reduces chip adhesion and improves visibility
• Right-hand cutting, 2-flute standard helix for efficient chip evacuation

In daily use

Choose this stub drill when you need a rigid, short tool for starting holes or drilling in confined spaces. The 49 mm working length provides enough depth for most stub drilling tasks, while the 75 mm overall length keeps the bit compact. The 118° point angle is a general-purpose geometry that centers well on a variety of materials.

Full specifications

• Drill bit type: Twist drill (stub)
• Standard: DIN 1897
• Material: HSS-G (high-speed steel, ground)
• Diameter: 9.0 mm
• Total length: 75 mm
• Working length: 49 mm
• Shank type: Cylindrical (parallel)
• Point angle: 118°
• Surface finish: Bright (ground)
• Cutting direction: Right-hand
• Tolerance: h8
• Number of flutes: 2
• Application materials: Steel, cast iron, non-ferrous metals, plastics, wood
• Recommended max material hardness: 900 N/mm²
• Manufacturing process: Ground from solid
• Coating: Uncoated
• Suitable for: Hand drills, pillar drills, automatic machines

Final note

A compact, precision-ground stub drill for accurate holes in a wide range of materials.