RUKO SPB-DIN338-9,8mm-HSSCo kierreporanterä HSS-Co 5% koboltti DIN 338

The RUKO SPB-DIN338-9.8mm-HSSCo twist drill bit is engineered for high-performance drilling in tough materials. Its HSS-Co 5% cobalt alloy and 135° split point deliver precise, efficient cutting in high-alloy steels, stainless steels, and heat-resistant alloys, making it a reliable choice for demanding workshop tasks.

Highlights

• HSS-Co 5% cobalt high-speed steel for enhanced heat resistance and durability
• 135° split point for accurate centering and reduced walking
• Fully ground with bright finish for smooth chip evacuation
• DIN 338 standard with h8 tolerance for consistent precision
• Cylindrical shank fits standard drill chucks

In daily use

This 9.8 mm drill bit offers a working length of 87 mm and an overall length of 133 mm, providing ample reach for deep holes. The split point geometry minimizes thrust pressure, while the cobalt content allows drilling in materials that generate high temperatures. Ideal for maintenance, metal fabrication, and repair tasks.

Full specifications

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co (High-Speed Steel with Cobalt)
• Cobalt content: 5%
• Diameter: 9.8 mm
• Overall length: 133 mm
• Working length (flute length): 87 mm
• Shank type: Cylindrical
• Point angle: 135°
• Point type: Split point
• Surface finish: Bright
• Cutting direction: Right-hand cutting
• Manufacturing process: Fully ground
• Tolerance: h8
• Recommended applications: High-alloy steels, stainless steels, acid-resistant steels, heat-resistant steels, cast iron, bronze
• Packaging quantity: 1 piece

Final note

RUKO precision tools are known for their quality and performance. This cobalt twist drill bit is a dependable addition to any professional or hobbyist toolkit.