Re: 718 steel

Hi
I've machined lots of this material.
Carbide drills will work but they aren't the answer.
There life hole per cost facture is too high
Cobalt drills work well. SFM 16-18
Feed .004/ rev Flood with coolant, this is very
important. Use peck drilling this helps to cool the
tip
Jeeeber

--- In CAD_CAM_EDM_DRO@y..., <victorcantujr@m...> wrote:
> i mean rpms are very slow
>
>
> [Non-text portions of this message have been removed]