Forney 20857 Tap Magic Industrial Pro Cutting Fluid, 4 oz

Used to drill and tap various carbon steels and aluminum. No issues, worked as intended

More effective for drilling and tapping than just using light oil.

I needed to drill two 3/8 holes in security steel that was 66 rockwell hardness. I had a small carbide bit to make a pilot hole, no problem. My 3/8 hss bit with my current cutting oil would not scratch the hole using a drill press. Researched, ordered Tap Magic, sharpened same bit, applied tap magic drilled out both pilot holes. The bit just became warm, I could touch with my bare fingers. Yes the bit did need to be sharpened again before drilling the second hole. This was hard steel, a cold chisel is 58-62 hardness. Tap magic got the job done.

Great stuff, parts kept cool and tool stayed cool to the touch.

Worked well!

working good

Helps keep the holes clean I will buy it again.

It works well when I was drilling a hole in a steel sink

Product looks and functions as described.

In the past I have used plain oil, grease and vaseline but this stuff is really magic.