RUKO SPF-FCut-HSSCo-7,0 mm broca helicoidal HSS-Co, DIN 338, tipo N, 7,0 mm, 109 mm comprimento, afiação de ponta, brilhante

Precision-ground HSS-Co twist drill bit with 5% cobalt content, engineered for high-performance drilling in alloyed and unalloyed steels, cast iron, non-ferrous metals, and plastics. The 135° split point ensures accurate centering and reduces walking, while the bright finish and fully ground flutes deliver efficient chip evacuation.

Overview

This RUKO twist drill bit conforms to DIN 338, featuring a cylindrical shank and a nominal diameter of 7.0 mm. Its total length of 109 mm and working length of 69 mm make it suitable for a wide range of drilling applications. The Type N flute profile is optimized for normal drilling conditions, providing a balance of strength and chip removal.

What stands out

• High-speed steel with 5% cobalt (HSS-Co) for enhanced heat resistance and durability
• 135° split point (cross-ground) for precise starting and reduced thrust pressure
• Fully ground spiral flutes for smooth chip flow and improved hole quality
• Bright (uncoated) surface for general-purpose use on a variety of materials
• Diameter tolerance h8 ensures consistent hole sizing

Technical details

• Product type: Twist drill bit
• Material: HSS-Co (high-speed steel cobalt)
• Standard: DIN 338
• Drill bit type: Type N (normal)
• Nominal diameter: 7.0 mm
• Total length: 109 mm
• Working length: 69 mm
• Shank type: Cylindrical
• Point angle: 135°
• Point grind: Split point (cross-ground)
• Surface treatment: Bright (uncoated)
• Flute type: Spiral flute
• Cobalt content: 5%
• Manufacturing method: Fully ground
• Diameter tolerance: h8
• Cutting direction: Right-hand cutting
• Recommended materials: Steel (alloyed/unalloyed), cast iron, non-ferrous metals, plastics
• Packaging quantity: 1 piece

Our verdict

A reliable and precise HSS-Co twist drill bit for demanding metalworking tasks. The cobalt alloy and split point design deliver performance and longevity, making it a solid choice for professionals and serious DIYers.