Berner Cobra Step Drill Set DIN 338 1.0 – 10.0 mm

Unalloyed steel and steel up to 1000 N/mm², non-ferrous metal, aluminum, PVC, Plexiglas, wood

• Faster drilling progress compared to other DIN 338 twist drills with stepped head
  • Very sharp, easy-cutting drill tip with short chip path to the shaft
• Perfectly round holes
  • New head with innovative step geometry
• No snagging at the end of the borehole
• Perfect surfaces on both sides of the material
• Very good self-centering, especially on curved surfaces (pipes) or inclined surfaces
  • Head with center drill
• No slipping in the drill chuck
  • 3 flank shaft