RUKO SPB-DIN338-HSSCo8-Ø1,4mm kierrepora

The RUKO SPB-DIN338-HSSCo8-Ø1,4mm is a precision-ground twist drill bit engineered for demanding metalworking tasks. Its 8% cobalt high-speed steel construction delivers exceptional heat resistance and durability, making it ideal for drilling stainless steel, acid-resistant steel, and other tough alloys where standard HSS bits fail.

Highlights

• DIN 338 compliant twist drill bit with 1.4 mm diameter
• HSS-Co 8% cobalt alloy for high heat resistance and extended tool life
• 135° split point for accurate self-centering and reduced walking
• Fully ground flutes and bright finish for efficient chip evacuation
• Right-hand cutting direction with h8 tolerance shank

In daily use

This jobber-length drill bit offers a 40 mm overall length and 18 mm working length, providing a balance of reach and rigidity. The cylindrical shank fits standard drill chucks, while the split point geometry minimizes thrust pressure and improves hole quality in production environments.

Full specifications

• Drill Bit Type: Twist Drill Bit (Jobber Drill)
• Standard: DIN 338
• Material: HSS-Co 8% (High-Speed Steel with 8% Cobalt)
• Diameter: 1.4 mm
• Overall Length: 40 mm
• Working Length (Flute Length): 18 mm
• Shank Type: Cylindrical
• Shank Diameter: 1.4 mm
• Point Angle: 135°
• Point Grind: Split Point (Cross-ground)
• Surface Finish: Bright (Uncoated)
• Manufacturing Process: Fully Ground
• Tolerance: h8
• Direction of Cut: Right-hand
• Recommended Materials: Steel, Stainless Steel, Cast Iron, Acid-resistant Steel, Non-ferrous metals
• Heat Resistance: High
• Application: Industrial, Professional, DIY
• Packaging: Single piece

Final note

RUKO's cobalt drill bits are trusted by professionals for their precision and longevity in challenging materials.