GRAPHITE súprava kovových vrtákov HSS-Co 1,0-13,0 mm, 25-dielna

Experience professional-grade metal drilling with this comprehensive 25-piece HSS-Co twist drill bit set, featuring a 5% cobalt alloy that delivers exceptional hardness and heat resistance for demanding applications.

Overview

The GRAPHITE HSS-Co drill bit set covers diameters from 1.0 mm to 13.0 mm in 0.5 mm increments, providing a complete range for precision work in steel, stainless steel, cast iron, and non-ferrous metals. Each bit is fully ground to DIN 338 standards with a 135° split point for accurate self-centering and reduced walking.

What stands out

• 5% cobalt HSS-Co alloy for superior wear resistance and longevity
• Fully ground flutes and 135° split point for fast, precise drilling
• Bright polished finish reduces friction and improves chip evacuation
• Supplied in a durable metal case for organized storage and transport

Technical details

• Material: HSS-Co (High-Speed Steel with 5% Cobalt)
• Type: Twist drill bits, cylindrical shank
• Diameter range: 1.0 – 13.0 mm (25 sizes, 0.5 mm increments)
• Point angle: 135°
• Cutting edge: Ground
• Standard: DIN 338
• Tolerance: h8
• Surface finish: Bright / Polished
• Recommended materials: Steel, stainless steel, cast iron, non-ferrous metals
• Packaging: Metal case

Our verdict

This GRAPHITE set is a reliable choice for workshops and professionals needing a complete range of cobalt drill bits for tough metalworking tasks.