Whatsitcalled!

Jun 04, 2006 44 Replies

Hi All,



I'm trying to remember what the name of the fluid you use when drilling thickish metal to lubricate and prevent buggering up your drill bits - however the name is escaping me :) Think it's a whiteish liquid if that helps!



Any assistance in jogging my memory would be handy :) Ta!


Its just oil&water I think?

That simple? Should be easy enough to implement. I'm half tempted to setup my own pump system as well if that's all there is to it, think a garden sprinkler pump and some filters to catch the crap might be the way forward...

On Sun, 4 Jun 2006 22:41:12 +0100, Alex Threlfall wrote (in article ):

Cutting fluid?

There's also some gungy stuff called Trefolex which can be used but is intended for low speeds only.

Use a fridge motor. It is a nice one for this job.

Not sure on the mix but I would imagine more water than oil would be used ie 2:1?

It was slurry when I was a lad. Oil and water as you say.

Hrm, could be it, not many hits on flebay for that tho...

Yep,even when I wus a lad on the Lathe&Milling machine.

Washing machine waste outlet pump is ideal,small and light and can be got from almost anywhere. ;-)

Suds in an engineering shop for general use at home etc a squirt of oil does the trick

Regards Jeff

I've just bought a chunky old drill you see, that's right on the boundaries of being a milling machine, indeed it has the base with a large drain off hole you see, hence the project to get a proper lubrication system setup :)

Thanks for your help, as it appears to be nothing special i think i'll go with the oil & water mixed 2:1 i think, seems the cheapest anyway :)

On Sun, 4 Jun 2006 23:15:08 +0100, Alex Threlfall wrote (in article ):

If you want the proper thing, then both MachineMart and Axminster sell a kit of bits with tank, pump, tube and squirters.

You can get the proper cutting fluid as well, which smells great.

A slurry is insoluable solid particles suspended in a liquid.

Two immiscible liquids, for instance oil and water form an emulsion when the globule sizes become very small.

A slurry will settle out if left, I don't think an emulsion will.

On Sun, 04 Jun 2006 21:41:12 GMT, Alex Threlfall had this to say:

Soluble oil. It comes as a brown liquid, which turns milky when you mix it with water.

Its called cutting oil, which is made with water soluble mineral oil. Ordinary engine oil does not mix too well with water and is a health hazard. But if your not up to your armpits in it every day or cutting very hard metal almost any oil/water mix will do.

-

Explain please?

They are designed to shift gallons a minute. He only needs a little piddle of cutting oil over the workpiece.

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