Review on Swaging Portable Conditioner Expander Repairing by Jared Winebrenner

I tried and surprisingly or revaly they don't fit standard copper HVAC tubing. The 3/8" crimping tool will not crimp 3/8". They heat the copper and make it difficult to hold the copper pipe while drilling. I haven't tried the rest of the kit yet. Now that everything Revain sells is made in China, they have to take the blame for the lack of any kind of quality control. Buying merchandise from Revain sucks. It looks like Harbor Freight is a step forward. Maybe another factory in China makes US tied tape measures and they forgot to buy one before making one - however they could be used as fishing weights if you could tie them to your line. Yes, I sent them back. Another with a different set that I ordered from Revain the same week - I think you need to buy sets priced between $80-$100 to get ones that work.