On our special Gundrilling machines we can drill centric and eccentric holes from a diameter of 0,08 in.
Drilling depths with a maximum L/D of 500 are possible. Our patented directional drilling system guarantees minimal drilling. This deep drilling method also allows us to create machining operations with a specific course (see illustration)
Special Drilling Types
- deflected gun hole
- Stepped bores
- Ferritic & austenitic steels
- Duplex & superduplex steels
- Nickel & titanium alloys
- Bronze & copper alloys
Gundrilling – The Process
A characteristic feature of Gundrilling is that the cooling lubricant is supplied through a cooling channel in the tool.
The chips are removed from the bore together with the coolant through the V-shaped groove (bead) of the drill shank. This is only possible if deep drilling oil or emulsion is available in sufficient quantity and pressure.