According to Dormer Pramet, the combination of these elements ensures consistent forces throughout the drilling cycle, with little or no increase in power requirement as the drill penetrates deeper. In turn, this allows increased cutting speeds and greater reliability without compromising tool life.
A special outer corner design provides added protection against wear and chipping, especially in challenging applications, such as cross-drilling, while a specially designed 140º point angle makes for easier centring.
The R459 is available in diameters from 3 to 16 mm, including 0.1 mm increments up to 10.0 mm, and features a TiAlN coating.
