- High-performance ground standard twist drill made from heavy-duty high speed steel. - The fully ground twist drill has a precise concentricity. - Thanks to the split point, this drill has good centring properties and requires little pressure.
- 4 flute spiral with maximum flute entry enable faster debris removal. - Maximised central core enables more efficient energy. transmission to the drill bit head. - Fully supported carbide head gives longer life and cleaner, more concentric holes for better fixing retention.
Speed. Set the pace with Speedhammer ™ Plus. With 28% greater flute capacity, the innovative design goes direct and direct. It removes dust and debris very quickly. E is particularly effective on uncured concrete due to unobstructed performance