Drill AmericaPOUCSNPT3 3 Piece Carbon Steel NPT Pipe Tap Set, 1", 1-1/4" and 1-1/2"

A good Product and great value for money, a well made item

Used this 3/4" NPT Tap to clean the threads for the Anode Rod on my Suburban Water Heater in my Motorhome.Used a little vegetable oil on the Tap for lubricant since regular petroleum based oils could possibly contaminate the water lines in the motorhome. The Anode Rod fits much better now and doesn't feel like I'm cross threading while installing. Good tool to have for future maintenance.

I have been only tapping aluminium, but i am pleasantly surprised. I needed to tap a wack of 1/4" and a few 3/8" and 1/2". buying all three taps individually would have been more then buying this set. They seem to be nicely made, they cut nice treads that have allowed installation NPT plugs and fitting in custom intake and throttle body modifications with no issues.

My drain plugs wouldn't screw back into my pool heater,I noticed the threads in the heater were rusted and damaged,l tried everything but still could not get plugs to enter the heater screw drain holes.I determined I needed a 1/4 -18npt tap and went straight To Amazon and found a carbon steel 1/4-18 not high quality tap which was delivered next morning.I gently retapped the drain holes and entered plugs with no problem.I opened up the pool and thanks to Amazon the family were back swimming.Amazon has never let me down love you guys.

was correct to do what I had to do, but it wasn't a huge test for a tap. It easily cut into alumium. It what I was expecting for this price. Don't know how it works on other material