[time-nuts] Machining some aluminum help!

[Charles Steinmetz]

Joseph wrote:

> For _forming_, one needs something very viscous, something that
> lubricates at very high pressures, at the yield strength of the
> material being formed.

I've had excellent results with STP oil treatment, by itself or with 
added Tungsten disulfide.  I frequently tap under power at 20-150 rpm, 
using Tapmatic self-reversing tapping heads.

Best regards,

Charles