In article
munications,
"Michael Koblic" wrote:

Interesting.
"Water-soluble oil" sounds almost an oxymoron. Do you have any trade names?

Rustlick WS-5050 is what I use. MSC et al sell it in one gallon
containers, and one gallon makes 15 or 20 gallons of emulsion.

The key is detergent. That's what allows the oil to emulsify into water.


Also, a supplementary question: Is there any benefit in keeping the cooling
fluid as cool as possible? By that I mean for instance dropping ice cubes
into the container prior to starting drilling?

The cooling is to keep the metal at the cutting point from achieving
welding temperatures, so any reasonable fluid will do (compared to air).
Oil is traditional, but messy. Water has a particularly high heat
capacity, even before it boils. The combination works very well.

So don't bother with the ice cubes.


Joe Gwinn


"Roger Shoaf" wrote in message
...
They sell a water soluble oil just for this purpose. The oil prevents
rusting of the iron, and the water cools better than straight oil. Some
systems use compresses air to mist the solution other systems flood cool
and
circulate the fluid.

--

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube,
then
they come up with this striped stuff.


"Michael Koblic" wrote in message
rvecommunications...
My new drill press has all kinds of cool features I never had before. One
of
them is a bottle with a control-flow spout to run lubricating fluid while
drilling.

Many years ago I used water mixed with light mineral oil, dripping it
onto
stuff manually. More recently I have been just applying Rapid Tap from
time
to time (generally I have not been drilling big holes).

What does everyone use these days? Specifically, given the ability of
continuous flow of lubricant and its collection under the table (and
recycling??).

--
Michael Koblic,
Campbell River, BC