OMT R1234yf Self Sealing Can Tap with 1/4" to 1/2" Adapter for Auto AC | Heat-Treated Brass; 3-Fold Leak Prevention; Ergonomic Grip Coolant Dispenser Tool; Auto AC Freon Recharge for Pro Mechanics

Works well. I use it professionally.

Good

Does not fit R134 cans. Not sure what it fits but spend more time than I did. My bad, I kept it since I didn't ask a question in advance.

This item works as you would think. However, I don't own an R1234yf manifold gauge. I have the standard manifold gauge that I use for R134a. I also have adapters for the low and high ports for R1234yf. So for the very rare instance I need to service a R1234yf system, I swap out the port fittings. The adapter supplied with can tap is LH thread. I believe this is for R1234yf manifold gauges. They should've included a RH thread adapter as well to fit the manifold gauges a majority already own. Luckily, I have one already.

looks good still have to use it

Good overall product finish, the tool looks great, functions as it should. just remember R1234YF cans are left-hand thread.

Does exactly what it says to do

This is a handy little product. Here's why; last summer my wife's car AC stopped working. It needed refrigerant so I bought a couple of cans. Well it needs still more refrigerant to work with the best efficiency, but not a whole can. Unfortunately once you open a can of refrigerant, if you don't use it all, the rest usually goes to waste. That's where this product comes in. You use it to pierce and open the can but if you don't use all of it you simply close the valve on this can seal, and voila, the rest is saved until next time. Refrigerant is like pretty much everything else now days; very expensive so it can save a lot of money over time. I'm glad to have this self sealing can tap. The price of it is less than one can of refrigerant at the time of this writing.

Upgrade part for my older gauge set. Fits perfectly and works with the 1234YF

Great product professional quality

Not good wrong thread

Works great with a gage set

good