RUKO SPB-DIN338-6,25mm-HSSCo HSS-Co spiraaliporanterä 6,25 mm DIN 338

Precision-ground HSS-Co twist drill bit with 6.25 mm diameter, DIN 338 standard, and 135° split point for accurate drilling in tough materials.

Overview

The RUKO SPB-DIN338-6,25mm-HSSCo is a high-performance twist drill bit made from HSS-Co (high-speed steel with 5% cobalt). It conforms to DIN 338 and features a cylindrical shank, bright finish, and h8 tolerance. The 135° split point ensures precise centering and reduced thrust, making it ideal for stainless steel, acid-resistant steel, heat-resistant steel, high-alloy steels, cast iron, bronze, and hard plastics.

What stands out

• 5% cobalt alloy for enhanced heat resistance and durability
• Split point geometry for accurate starting without center punch
• Ground from solid for consistent quality
• Bright finish for corrosion resistance and chip evacuation

Technical details

• Drill bit type: Twist drill bit
• Standard: DIN 338
• Material: HSS-Co (5% cobalt)
• Diameter: 6.25 mm
• Total length: 101 mm
• Working length: 63 mm
• Shank type: Cylindrical
• Point angle: 135°
• Point grind: Split point (cross-ground)
• Manufacturing process: Ground from solid
• Surface finish: Bright / uncoated
• Tolerance: h8
• Recommended materials: Stainless steel, acid-resistant steel, heat-resistant steel, high-alloy steels, cast iron, bronze, hard plastics

Our verdict

A professional-grade drill bit that combines cobalt toughness with a split point for reliable performance in demanding applications.