Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size

I would buy this product again and will run I run out.

Used this oil to drill holes and cut hard steel with a hack saw it really seemed to greatly reduce wear bit and blade. Stuff works great.

Great cutting oil at a good price. Fast ship!

Does the job, I would recommend.

I used this cutting oil with a rethreading die on a few lug posts on my car wheel hub that I had stripped while trying to remove a rusted rotor while banging with a hand sledge and my bad aim missed and damaged a few threads on some of the studs. Worked like a champ! The oil made the rethreading job effortless!

My tapping is almost exclusively thread chasing with 1-1/4, 1-1/2, & 2 NPS taps lately. Taps these sizes are expensive so proper lubrication is critical. Tap Magic has never let me down.

Really helps life of bits. I broke through 4 expensive bits without it on one job, started using it and used one bit for multiple Jobs. It does go fast though.

I had a number of 1/2 holes to drill in steel. I compared it to motor oil using the same drill bit, the same steel (2, 3/16 wall square tubing) and the same drill press. Tap Magic has a very low viscosity - runs off as soon as it is applied. Per the manufacturer, parts and tools must be cleaned and oiled afterwards to prevent staining and corrosion. Hole quality was noticeably worse than holes drilled with motor oil.

Its Tap Magic. This product has been around longer than I have, and Im no spring chicken. Need anyone say anything more?

there are a lot of bad reviews on this product so I wanted to leave a review of my own. I got this for a project which this was the second time doing it, first time using this cutting oil. this made it SO much easier. The first time, the tool I used took significantly longer to drill out and wad chipped when I was finished. The second time tool 10 minutes and the reamer still looks new. Im very happy with this purchase 10/10