Forney 20857 Tap Magic Industrial Pro Cutting Fluid, 4 oz

Works great.

There are other commercial products for machining aluminum that work better and less messy.

I havent tried it yet but it seems to be just as claimed

After so many suggestions from so many reviews on here, I decided to give this fluid a try. I had to drill through a light weight steel gun safe. I used Hymnorq Metric M35 Cobalt Steel Drill Bits and this fluid. A perfect combination. My bits never dulled, nor overheated. And what a great price!

Was dented on arrival but its whats inside that matters!

I had a stainless steel tube that I needed to tap, and it the difference between with and without Tap Magic is stark. It vastly eases the cutting....night and day.

This stuff does what it says it does. I am a long time user.

This product makes drilling very easy

So many drill bits I broke in my lifetime lol, cutting fluid makes the job that much more easier and cost effective.

You will need to have some of this oil to help maintain your drill bits